Talks by Palash Baran Pal given since about mid-1997

Talks at academic conferences and workshops

• History and mystery of calendars
  Invited lecture at the online course on Historical Development of Astronomy in India organized by the IISER Mohali, 24 May 2025.
• Measurement of length
  Invited lecture at the One-day colloquium for Research Scholars at the Physics Department, Calcutta University, 25 Sep 2024.
• Planck's formula, Bose's derivation, Einstein's generalization
  Invited lecture at the conference 100 years of Bose statistics organized by the S N Bose Centre for Basic Sciences, Calcutta, 03 Feb 2024.
• Quantum Mechanics and vector spaces
  A series of 4 lectures (1.5 hours each) in a Refresher course organized by the Physics Department, University of Calcutta, 5 and 6 Jan 2024.
• AKR and the teaching of Physics
  Invited lecture at the conference Remembering Amal Kumar Raychaudhuri (AKR), organized by the Institute of Mathematical Sciences, Chennai, 5 to 7 Oct 2023. (Conference site link)
• Representations of the Lorentz algebra
  3 invited lectures (1.5 hours each) at the Virtual School on Flavor Structure of the Standard Model, organized by IIT Kanpur, 31 Aug to 2 Sep 2021. (Podcast links)
• Unification of forces
  Invited talk at the National conference on frontiers in modern physics, organized by Adamas University, Barasat, 16 Aug 2018.
• Unification of forces
  Invited talk at the Research Scholar Day at the Physics Department, IIT Kharagpur, 10 Mar 2018.
• Unification of forces
  Invited talk at the Science Camp organized by Jadavpur University Students in the Physics Department, 14 Mar 2017.
• Neutrinos and astrophysics
  Series of 4 lectures (1.5 hours each) at the ‘CNT Lectures on Special Topics in Nuclear Astrophysics’ organized by the Variable Energy Cyclotron Centre, Calcutta, 06–09 Mar 2017.
• Neutrinos and cosmology
  Invited talk at the orientation session of the DAE Nuclear Physics Symposium, held at the Saha Institute of Nuclear Physics. 04 Dec 2016.
• Unification of forces
  Invited talk at the conference "Current trends in modern physics" organized by the Department of Physical Sciences, IISER Kolkata, 5 Nov 2016.
• Neutrinoless double beta decay and neutrino mass
  4 invited talks (75 minutes each) at the "NDBD workshop" organized by IIT Ropar and Tata Institute of Fundamental Research, held at IIT Ropar, 17–21 Oct 2016.
• Symmetry and the PMNS matrix
  Talk at the "First workshop on beyond standard model physics" at IISER Mohali 06–09 Apr 2016.
• Renormalization
  3 invited lectures (1.5 hours each) at the workshop "Recent developments in quantum field theory" at the Banaras Hindu University, 24–26 Feb 2016.
• Tests of time-reversal violation
  Invited talk at the conference "Exploring Fundamental Physics using Atomic Systems (EFPAS 2015)" at the Physical Research Laboratory, Ahmedabad, 6–8 May 2015.
• Chiral optics and the third electromagnetic constant
  Invited talk at the conference "Light & Photons" to celebrate the International Year of Light (IYL 2015), held at the Indian Association for Cultivation of Science, Calcutta. 28 Apr 2015.
• The importance of neutrinos
  Invited talk at the "StatCosmo15" conference held at the Indian Statistical Institute, Calcutta. 13 Feb 2015.
• What's so special about neutrinos?
  Evening talk at the "CNT winter school on nuclear astrophysics" held at the Variable Energy Cyclotron Centre, Calcutta. 21 Jan 2015.
• Unification of forces
  Talk at the National seminar on "Frontiers of research in Physical Sciences" held at Karimganj College. 20 Sep 2014.
• Discovering particles
  Talk at the 1-day conference on "Recent advances in Physics" organized by Bidhan-nagar College. 15 Sep 2013.
• Neutrino oscillation and level crossing
  Refresher course on "Mathematical physics", organized by the Applied Mathematics Department, Calcutta University, 27 Feb 2013.
• The structure of gauge theories
  Workshop on "The role of mathematics in theoretical physics", organized by Mathematics Department, Jadavpur University, 11 Jan 2013.
• Non-standard GUTs
  "Grand unification and baryogenesis", organized by Physics Department, Calcutta University, 23–25 Nov 2011.
• Summary of theoretical seminars at the conference
  "Dark Matter in LHC Era: Direct and Indirect Searches", held at the Saha Institute of Nuclear Physics, Calcutta, 4–8 Jan 2011.
• Particle physics of WIMP-nucleon cross section
  Talk at the conference "Dark Matter in LHC Era: Direct and Indirect Searches", held at the Saha Institute of Nuclear Physics, Calcutta, 4–8 Jan 2011.
• Man and the universe
  Invited talk at the Golden Jubilee celebration conference of the Indian Anthropological Society, organized by the Indian Anthropological Society and the Anthropological Survey of India, held in Calcutta, 23–26 Nov 2010.
• Demystifying Majorana neutrinos
  Invited talk at the conference "Aspects of neutrinos" organized by the International Centre for Theoretical Sciences, held at Goa University Conference Centre, 08–15 April 2009.
• Level crossing phenomena in astrophysics
  Invited talk at the conference "Particle Physics: achievements and challenges" organized by Calcutta University, 04 Feb 2008.
• Lorentz symmetry violating signatures in a medium
  Invited talk at the conference "Contemporary issues in nuclear and particle physics", Jadavpur University, Calcutta, 01 Feb 2008.
• Issues in neutrino astrophysics and cosmology
  Invited talk at the WIN-07 conference (Weak Interaction and Neutrinos) held at the Saha Institute of Nuclear Physics, Calcutta, 15 Jan – 20 Jan 2007.
• Mohabishwer jyamiti (Geometry of the universe)
  Invited talk at the 3-day conference on "The international year of Physics", Bengal Engineering and Science University, Howrah, 30 Nov - 02 Dec 2005.
• Bhasha-shikkhon o projukti (Language teaching and technology)
  Invited talk at the 3-day conference on "Aspects of Grammar and Language", Paschim Banga Bangla Akademi, 17-19 Aug 2005.
• Geometry of the universe
  Invited talk at the 1-day conference on "100 years of relativity", Kalyani University, 21 Apr 2005.
• Neutrinos and magnetic fields
  Plenary talk at the conference "Theoretical High Energy Physics-1", organized by Indian Institute of Technology, Roorkee, India, 16-20 Mar 2005.
• Neutrino mass and mixing
  Plenary talk at the "XVI DAE-BRNS High energy physics symposium", Saha Institute of Nuclear Physics, Calcutta, 29 Nov–02 Dec 2004.
• Standard model and beyond
  Invited talk at the "National conference on neutrinos in nuclear, particle and astrophysics", Indian Institute of Technology, Kharagpur, 26-28 Feb 2004.
• Neutrinos in high magnetic fields
  Invited talk at the conference "Contemporary issues in nuclear and particle physics", Jadavpur University, Calcutta, 16-17 Feb 2004.
• Magnetic monopoles and quantization of electric charge
  Invited lecture at the conference AKR-80 on the occassion of the 80th birthday of Prof. Amal Kumar Raychaudhuri, organized jointly by Jadavpur University and the S N Bose National Center for Basic Sciences, Calcutta, 22/2/03–24/2/03.
• Introduction to the supersymmetric standard model
  12 invited lectures at the Vietnam Winter School of Physics, held at the Institute of Physics, Hanoi, Vietnam, 25/12/00 to 6/1/01.
• Twentieth century science and the deconstruction of reality
  Invited talk at the National seminar on Literature and Philosophy, Department of English, Jadavpur University, Calcutta, India, 22-24 Mar 2000.
• Breakdown of universality of electromagnetic and gravitational interactions in matter
  Two invited talks at the conference on Finite temperature field theory, Variable Energy Cyclotron Centre, Calcutta, India, 8-11 Oct 1999.
• Neutrino scattering in strong magnetic fields
  Invited talk at the COSMO-99 conference, Abdus Salam International Centre for Theoretical Physics, Trieste, Italy, 29 Sep - 2 Oct 1999.
• Cosmology with non-zero cosmological constant
  Invited talk at the conference of Young Astrophysicists of Today's India (YATI), S.N. Bose Center for Basic Sciences, Calcutta, India, 24-26 Mar 1999.
• Modern determinations of cosmological parameters
  Discussion meeting on Recent developments in Neutrino Physics, Physical Reseach Laboratory, Ahmedabad, India, 2-4 Feb 1999.
  Invited talk.
• Particle dark matter
  Invited talk at Cosmology: theory confronts observations, Indian Institute of Technology, Kharagpur, India, 11-17 Jan 1999.
• Matter and gravity
  Invited talk at the Topical symposium on Particle Physics, Indian Physics Association, held at Calcutta University, Calcutta, India, 21 Dec 1998.
• An overview of Neutrino physics
  Invited talk at the SERC school for Nuclear Physics, Variable Energy Cyclotron Centre, Calcutta, India, July 1998.
• Fifty years of the pion
  Invited talk at the conference on 100 years of the discovery of the electron, 50 years of the pion and 25 years of asymptotic freedom, Jadavpur University, Calcutta, India, 27 April 1998.
• Neutrino astrophysics and cosmology: recent developments.
  Invited talk at Perspectives of Theoretical Physics, Indian Association of Cultivation of Science, Calcutta, India, 22-24 April 1998.
• Neutrino properties from reactor and accelerator experiments.
  Invited Plenary talk at the B and Nu Workshop, Mehta Research Institute, Allahabad, India, 4-8 Jan 1998.
• Neutrino astrophysics and cosmology: recent developments.
  Invited Plenary talk at the B and Nu Workshop, Mehta Research Institute, Allahabad, India, 4-8 Jan 1998.
• Optical activity of a neutrino gas
  Invited talk at the Workshop on Astroparticle Physics, International Center for Theoretical Physics, Trieste, Italy, 15 Oct - 15 Dec 1997.

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Seminars, Colloquia etc

• Arrow(s) of time
  Invited talk at the conference "Pandemonium" organized by the Department of Physics, Ramakrishna Mission Vivekananda Centenary College, Rahara, 14 March 2026.
• Elementary particles
  Invited talk at Vidyasagar College, Calcutta, 23 Dec 2024.
• Neutrinos
  Invited talk at C K Majumdar Memorial Summer Workshop in Physics 2024 organized by the Indian Association of Physics Teachers (Regional Council 15) and the S. N. Bose National Centre for Basic Sciences, Calcutta, 29 Jul 2024.
• Bosons
  Invited talk at the "Celebration of Bose Statistics" organized by the Heritage Institute of Technology, Calcutta, 19 Jul 2024.
• Particles and antiparticles
  Invited talk at C K Majumdar Memorial Summer Workshop in Physics 2023 organized by the Indian Association of Physics Teachers (Regional Council 15) and the S. N. Bose National Centre for Basic Sciences, Calcutta, 18 Jul 2023.
• Unification of forces
  Invited talk at the Ramakrishna Mission Mahavidyalaya, Narendrapur, 03 May 2023.
• On Pythagorean triplets
  Seminar at the Physics Department, Calcutta University, 27 Apr 2023.
• Great mistakes
  Debajyoti Bhowmik memorial lecture organized by Ramakrishna Mission Mahavidyalaya, Belur, 23 Dec 2022.
• The seesaw mechanism
  Theory group seminar at the Saha Institute of Nuclear Physics. Calcutta, 27 Sep 2022.
• Dirac
  Ananta Kumar Sarker and Snehalata Sarker Memorial seminar at Bethune College, Calcutta, 20 Sep 2022.
• Unification of forces
  Condolence meeting of Prof. Bichitra Kumar Guha at the Physics Department, IIEST Shibpur, 6 Apr 2022.
• Einstein and the Nobel prize
  Physics Department colloquium (online), Scottish Church College, Calcutta, 17 Dec 2021. (Podcast link, edited)
• Fermion mixing from intergenerational symmetry
  High energy physics seminar, Institute of Mathematical Sciences, Chennai, 1 Nov 2019.
• বোসন আর ফের্মিয়ন (Bosons and fermions)
  Invited talk at the 11th DST INSPIRE Internship Camp 2019, held at Visva-Bharati, Shantiniketan, 23 Sep 2019. (Podcast link)
• Thermodynamics
  A series of 2 lectures at a refresher course organized by Calcutta University, 19 and 21 Aug 2019.
• Unification of forces
  Physics colloquium, Presidency University, 14 Aug 2019.
• Measurements of length, mass and time
  Colloquium, Harish Chandra Research Institute, Allahabad, 5 Oct 2018. (Podcast link)
• Unification of forces
  Physics colloquium, IIT Guwahati, 6 Apr 2018.
• The question of fermion families
  High energy physics seminar, IIT Guwahati, 5 Apr 2018.
• Bosons and fermions
  Invited talk at BijayKrishna Girls' College, Howrah, 06 Feb 2018.
• Wave-particle duality and modern Physics
  Invited talk at Midnapore College, Midnapore, 29 Jan 2018.
• Mohabishwer shoishob (The childhood of the universe)
  Invited talk at Bangabasi Morning College, Calcutta, 20 Dec 2017.
• Mathematization of Physics
  Seminar, Mathematics Department, St Xavier's College, Calcutta, 13 Sep 2017.
• Discovering elementary particles
  Colloquium, Saha Institute of Nuclear Physics, Calcutta, 30 Aug 2017.
• Unification of forces
  Seminar, Physics Department, IIT Roorkee, 10 Aug 2017.
• Particles and waves
  Seminar, Physics Department, Diamond Harbour Women's University, 11 Jul 2017.
• The history and mystery of calendars
  Colloquium, Homi Bhabha Centre for Scientific Education, Mumbai, 15 Jun 2017. (Podcast link)
• Statistical Mechanics
  3 lectures (75 minutes each) at the NIUS (National Initiative on Undergraduate Science) Physics Camp held at the Homi Bhabha Centre for Scientific Education, Mumbai, 13 and 14 Jun 2017.
• Unification of forces
  Invited talk at the conference "Frontiers of modern physics" organized by the Department of Physics, Jogamaya Devi College, Kolkata, 21 Nov 2016.
• Unification of forces
  Science Colloquium, IIT Ropar, 21 Oct 2016.
• Three horizons of scientific terminologies for Indian languages
  Colloquium, Homi Bhabha Centre for Scientific Education, Mumbai, 16 Jun 2016.
• Statistical Mechanics
  2 lectures (75 minutes each) at the NIUS (National Initiative on Undergraduate Science) Physics Camp held at the Homi Bhabha Centre for Scientific Education, Mumbai, 14 and 15 Jun 2016.
• The Physics Nobel Prize of 2015
  Colloquium, Variable Energy Cyclotron Center, Calcutta, 11 Dec 2015.
• The Physics Nobel Prize of 2015
  Physics Department seminar, Barasat Government College, 04 Dec 2015.
• Geometry of our universe
  Invited talk in 1-day seminar on the centenary of the General Theory of Relativity organized by the Physics Department, Maulana Azad College, Calcutta, 28 Nov 2015.
• The Physics Nobel Prize of 2015
  RFA Colloquium, Saha Institute of Nuclear Physics, 09 Oct 2015.
• Tests of time-reversal violation
  CTS Seminar, Indian Institute of Technology, Kharagpur, 26 Aug 2015.
• Tests of time-reversal violation
  Colloquium, Saha Institute of Nuclear Physics, 5 Aug 2015.
• Unification of forces
  Physics Department Seminar, Visva-Bharati University, Santiniketan, 28 Mar 2015.
• Discovering elementary particles
  Physics Department Seminar, Indian Institute of Science Education and Research (IISER), Calcutta, 25 Mar 2015.
• SatyendraNath Bose and counting particles
  Invited talk at the National seminar on "Scientists who dared and made the difference", organized by the Asiatic Society, Kolkata, 03 Mar 2015.
• Discovering elementary particles
  Physics Department Seminar, Presidency University, Calcutta, 05 Nov 2014.
• Wave-particle duality
  Seminar at the Institute of Engineering and Management, Calcutta, 17 Dec 2013.
• The Physics Nobel Prize of 2013
  Colloquium, Saha Institute of Nuclear Physics, 22 Nov 2013.
• History and mystery of calendars
  Physics colloquium, Instituto Superior Técnico, Lisbon. 21 Nov 2012.
• Approximation methods in Statistical mechanics
  A series of 4 lectures (90 minutes each) at a refresher course organized by Calcutta University. 17 and 18 Jul 2012.
• The story of calendars
  A series of 2 lectures at a refresher course organized by Jadavpur University. 9 and 13 Jul 2012.
• Neutrino physics
  A series of 3 lectures (2 hours each) at the Instituto Superior Técnico, Lisbon. 8, 10 and 15 May 2012.
• Different formulations of quantum mechanics
  St. Xavier's College, Calcutta, 15 Feb 2012.
• The birth of quantum mechanics
  Conference organized by Narasimha Dutt College, Howrah, 24 Nov 2011.
• Vector space formalism of Quantum Mechanics
  A series of 4 lectures (90 minutes each) at the Refresher Course organized by Physics Department, Calcutta University, 06 and 07 July 2010.
• Symmetry violation through matter effects
  High Energy Physics Seminar, Technische Universität, Dortmund, 20 May 2010.
• Measurements of length
  St. Xavier's College, Calcutta, 8 Mar 2010.
• Dirac, Majorana and Weyl fermions
  A series of 2 lectures at the Instituto Superior Técnico, Lisbon, on 16 and 23 November 2009.
• Measurement of length
  Physics Department Colloquium, IIT Kanpur, 21 Aug 2009.
• Measurement of length
  Colloquium, IISER Bhopal, 20 Aug 2009.
• Quantum Field Theory
  A series of 6 lectures at the Refresher Course organized by Physics Department, Calcutta University, 05 to 09 Sep 2008.
• Thermodynamics
  A series of 5 lectures at the Refresher Course organized by Physics Department, Calcutta University, 05 to 11 Sep 2007.
• Level-crossing phenomena in astrophysics
  Colloquium, Physics Department, Indian Institute of Science, Bangalore, 03 Nov 2006.
• Measuring lengths
  Seminar, Physics Department, Indian Institute of Science, Bangalore, 02 Nov 2006.
• Level-crossing phenomena in astrophysics
  Colloquium, Indian Institute of Astrophysics, Bangalore, 31 Oct 2006.
• Schwinger propagator and its limitations
  Seminar given at the Physics Department, Calcutta University, 4 Jul 2006.
• The life story of a typical star
  Invited talk at the Refresher Course organized by Physics Department, Calcutta University, 11 Sep 2005.
• Statistical Mechanics of relativistic systems
  Two talks at the Refresher Course organized by Physics Department, Calcutta University, 15 and 16 Sep 2004.
• Measuring neutrino masses
  Invited talk at the Academic Session of the Annual General Body Meeting of the Indian Physical Society, held at the Indian Association for Cultivation of Sciences, Calcutta, India. 14 May 2004.
• Physics of high magnetic fields
  Colloquium, Physics Department, Indian Institute of Technology, Kanpur, 26 Mar 2004.
• Matter in high magnetic fields
  Invited talk at a Refresher course held at the Physics Department, University of Kalyani, 12 Feb 2004.
• Determining the ages of old things like the earth, the sun, and the universe
  1st Jagjit Singh Memorial Lecture at the Indian Association of Cultivation of Science, Calcutta, 19 May 2003.
• Moulo kona o mohabishwo (Elementary particles and the universe)
  Physics Department seminar, Bardhaman University, 17 April 2003.
• The 2002 Nobel Prize in Physics
  Colloquium, Saha Institute of Nuclear Physics, 16 Apr 2003.
• Magnetic monopoles and Dirac quantization
  Theory Group seminar, Saha Institute of Nuclar Physics, Calcutta, 5 Mar 2003.
• Physics Nobel Prize for 2002
  Colloquium, S.N. Bose Centre for Basic Sciences, Calcutta, 3 Dec 2002.
• Is there a "solar neutrino problem" anymore?
  Seminar, Centre de Physique Théorique, École Polytechnique, Palaiseau, France. 27 May 2002.
• Elementary particles in material media
  Seminar, Physics Department, University of Cergy-Pontoise, France. 21 May 2002.
• Gravitational and inertial mass of a particle in a medium
  Seminar, Centre de Physique Théorique, École Polytechnique, Palaiseau, France. 16 May 2002.
• Non-universal gravitational coupling of fermions in a medium
  High Energy Physics Seminar, Abdus Salam International Centre for Theoretical Physics, Trieste, Italy. 31 May 2001.
• Quantum theory and relativity
  Invited talk at the Academic Session on ``100 years of Quantum Theory'' at the Annual General Body Meeting of the Indian Physical Society, held at the Indian Association for Cultivation of Sciences, Calcutta, India. 4 May 2001.
• The cosmological constant
  Physics Department, Viswa-Bharati University, Shantiniketan, India. 1 April 2001.
• Neutrinos and pulsar kicks
  Colloquium, Inter-University Centre for Astronomy and Astrophysics, Pune, 10 Apr 2000.
• The 1999 Nobel Prize in Physics
  Colloquium, Saha Institute of Nuclear Physics, 10 Oct 1999.
• Determination of cosmological parameters
  Theory group seminar, Saha Institute of Nuclear Physics, Calcutta, 1 Mar 1999.
• Non-universality of gravitational couplings in a medium
  Colloquium, S.N. Bose Centre for Basic Sciences, Calcutta, 18 Feb 1999.
• Matter and gravity
  Colloquium, Indian Institute of Technology, Kanpur, 5 Feb 1999.
• Elementary particles in material media
  Colloquium, Indian Association for the Cultivation of Science, Calcutta. August 1997.

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Academic seminars and conference talks in subjects other than Physics

• Rhymes in poetry
  Invited talk at a Refresher course organized by the Department of Bengali, Bardhaman University, 07 Feb 2024.
• কল্পবিজ্ঞান: কতোটা কল্পনা, কতোটা বিজ্ঞান (Science fiction: how much fiction, how much science)
  Invited talk at the Department of Bengali, Rabindra Bharati University, Calcutta, 17 Sep 2022.
• বর্ণমালা, হরফ, বিদ্যাসাগর (The alphabet, the script, and Vidyasagar)
  Invited talk at the conference Bengali Script Reform: Vidyasagar and Beyond organized by the Asiatic Society of Calcutta, 6th Oct 2020. (Podcast link)
• বাংলা হরফ (Bengali script)
  Prof. Debajyoti Barman Memorial Lecture at Ananda Mohan College, 5 Mar 2019. (Podcast link; edited)
• বাংলা হরফ (Bengali script)
  Seminar at Dinabandhu Andrews College, Calcutta, 3 May 2018.
• Curriculum revision
  Invited talk at the conference on "Curriculum revision" organized by the Electrical Engineering Department, Jadavpur University, 22 Mar 2017.
• Protecting mother tongues
  Invited talk at the 2-day conference on "Protecting the mother tongue" organized by Sahitya Akademi, New Delhi, 21 Feb 2017.
• বাংলা হরফ (Bengali script)
  Invited talk at the 2-day conference on "The cultural heritage of Bengal" organized by Narasinha Dutt College, Howrah, 17 Feb 2017.
• Developing Bangtex, or Latex in Bengali
  Invited talk at a conference on "Technology and the Bengali language" organized by Sarsuna College and the Linguistics Department of Jadavpur University, held at Jadavpur University. 25 Nov 2016.
• Problems of transliteration
  2 lectures (90 minutes each) at a refresher course organized by the Department of Linguistics, Jadavpur University. 12 Sep 2015.
• The role of computers in standardization of style sheets
  Invited talk at a 2-day conference on "Bengali style sheet standardization", organized by the Department of Linguistics, Jadavpur University, 24–25 February 2014.
• Bangla Horoph (Bengali script)
  Invited talk at a 2-day conference on "Bengali printing and publishing of 19th and 20th centuries", organized jointly by the Department of Bengali, Jadavpur University, and Visva-Bharati University Publication Department, 19–20 March 2013.
• Linguistic consciousness: good or bad?
  Invited talk at the 1-day conference on "Current directions in Linguistics", organized by Department of Linguistics, Calcutta University, 15 Jan 2013.
• Digitising of Texts: What's in It for Authors?
  Invited lecture at the conference "Digital Texts in Editable Format" organized by the School of Cultural Texts and Records, Jadavpur University, 7–10 Feb 2007.
• Storing texts on computers: arguments for a two-level approach
  Invited lecture at the conference "Print and Palimpsest" organized by the School of Cultural Texts and Records, Jadavpur University, 4 Feb 2006.
• Science fiction: how much science and how much fiction?
  Plenary talk at the conference on "Science and Literature", organized by the Department of Bengali, Burdwan University, 10-11 Feb 2005.
• Morphological analysis of some recent orthographical reforms
  Invited lecture at the one-day conference on Grammatical and lexical studies in Bengali, Department of Linguistics, Calcutta University, 25 Mar 2003.
• Crossing disciplinary boundaries
  Panel discussion as a part of a Refresher course, Calcutta University, Calcutta, 10 Mar 2000.

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Conference and workshop organization

• Member of the Scientific committee of 3rd Saha Theory Workshop held at Saha Institute, Calcutta, 16–20 January 2017.
• Member of the International advisory committee of VietNu held in Vietnam, December 2012.
• Member of the National organizing committee of Workshop on High Energy Physics Phenomenology (WHEPP)-11 held at the Physical Research Laboratory, Ahmedabad, January 2010.
• Member of the Advisory committee of JIGSAW (Joint Indo-German School And Workshop) 2007 at the Tata Institute of Fundamental Research, Mumbai, February 2007.
• Member of the National organizing committee of Workshop on High Energy Physics Phenomenology (WHEPP)-9 held at the Institute of Physics, Bhubaneshwar, January 2006.
• Member of the Local organizing committee of DAE High Energy Physics conference held at the Saha Institute of Nuclear Physics, Calcutta, 29 Nov-2 Dec 2004.
• Member of the Advisory committee of National conference on neutrinos in nuclear, particle and astrophysics held at the Indian Institute of Technology, Kharagpur, 26-28 Feb 2004.
• Member of the National organizing committee of PASCOS-03, IXth International Symposium on Particles, Strings and Cosmology, held at the Tata Institute of Fundamental Research, Mumbai, 3-8 January, 2003.
• Member of the organizing committee of the Conference on Neutrino Physics held as part of the Golden Jubilee celebrations of the Saha Institute of Nuclear Physics from 9/8/2000 to 11/8/2000.
• Organized the SERC school on Theoretical High Energy Physics as the Director of the school. Held at the Saha Institute of Nuclear Physics from 14/2/2000 to 4/3/2000. Funded by the Department of Science and Technology, Government of India.
• Member of the organizing committee of the Conference on Quantum Field Theory held as part of the Golden Jubilee celebrations of the Saha Institute of Nuclear Physics from 18/1/2000 to 22/1/2000.

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Public or popular lectures

• কোয়ান্টাম তত্ত্ব ও আমাদের বোধবুদ্ধি (Quantum theory and common sense)
  Talk at the seminar on "100 years of Quantum Mechanics", organized by PashcimBanga Bigyan Mancha, Calcuta, 18 Mar 2026.
• Fame of scientists
  Talk at the Science Day Celebration at the Bose Institute, Calcuta, 27 Feb 2026.
• প্রাকৃতিক ধ্রুবকের কথা (On the constants of Nature)
  5th Ramkrishna Bhattacharya memorial lecture organized by Carvaka-Lokayata Trust, Calcutta, 20 Dec 2025. (Podcast link posted by the organizers).
• নানা ভাষা নানা স্বর (Vowels in different languages)
  Suniti Kumar Chattopadhyay Memorial Lecture organized by the Institute for Language Study and Research, Calcutta, 15 Jan 2025. (Podcast link posted by the organizers).
• রবীন্দ্রকাব্যে শব্দের ব্যবহার (Choice of words in Rabindranath's poetic work)
  Talk given at the Tagore Research Institute, Calcutta, 27 Sep 2024. (Podcast link posted by Bodhisattva Bhattacharya).
  
• ইশকুলে বিজ্ঞানশিক্ষা (Teaching of science in schools)
  Sushil Kumar Mukhopadhyay Memorial Lecture organized by the Primary Education Development Board, held at the Theosophical Society Hall, Calcutta, 11 Feb 2024.
• রবীন্দ্রসঙ্গীতের উচ্চারণ (Pronunciation of Rabindranath Tagore's songs)
  Soumyendranath Tagore Memorial Lecture organized by Boitanik, 11 Oct 2023. (Podcast link: edited)
• Two stories of mistakes
  Science day lecture at the North Bengal University, 28 Feb 2023..
• Dirac: the introvert genius
  7th “Ananta Kumar Sarker & Snehalata Sarker Memorial one day Seminar for the Advancement of the Knowledge in Physics”, Organized by Department of Physics, Bethune College, Calcutta. 20 Sep 2022. Podcast link
• Big science, small science: how are we performing?
  Invited talk at the session on "Science in Bengal — past and present", organized by Birla Industrial and Technological Museum, 23 Jun 2022.
• মৌল কণা (Fundamental particles)
  Talk at the one-day webinar "Looking into the progress of science", organized by Vidyasagar University, Midnapore, 11 May 2022.
• বিজ্ঞানজীবীর ব্যাকরণচর্চা (Grammar studies of a science professional)
  Triguna Sen Memorial Lecture organized by the Alumni Association of NCE Bengal and Jadavpur University, 6 May 2022. (Podcast link; edited)
• মৌল কণা (Fundamental particles)
  Prof. Gangesh Chandra Biswas memorial lecture (online) organized by Prabhat Kumar College Physics Alumni Association, Contai, 12 Mar 2022.
• ভারতীয় জ্ঞান পরম্পরার ক্যালেন্ডার (The IKS calendar)
  Talk at the online conference on "New National Education Policy", organized by All Bengal Save Education Committee, 14 Jan 2022. (Podcast link; my talk starts at 0:33:50)
• নতুন জাতীয় শিক্ষানীতি ও ভাষাশিক্ষা (New National Educational System and the teaching of languages)
  Talk at the online conference on "Indian Knowledge Systems", organized by the Breakthrough Science Society, 13 Feb 2021. (Podcast link; my talk starts at 1:01:50)
• মৌল কণা (Fundamental particles)
  Online talk organized by Rabindra Mahavidyalay, Champadanga, 16 Dec 2020.
• কণা আর ঢেউ (Particles and waves)
  Invited talk at Mrinalini Datta Mahavidyapith, Birati, 28 Feb 2020. (Podcast link)
• ভাষার মিষ্টত্ব, ভাষার দুরূহতা (What makes a language sweet and what makes a language difficult)
  Lecture at the annual ceremony of New Alipore Multipurpose School Alumni Association, 14 Dec 2019.
• Scientific terminology in Indian languages
  Lecture at a conference for marking the 25th anniversary of the Tamil Nadu Science Forum, held at the Institute of Mathematical Sciences, Chennai, 2 Nov 2019.
• ক্যালেন্ডারের রহস্য (The mystery of calendars)
  Students' colloquium at the Physics Department, Calcutta University, 30 Sep 2019. (Podcast link)
• কল্পবিজ্ঞান (Science fiction)
  Jatish Datta Memorial lecture at Brabourne College, Calcutta, 20 Sep 2019.
• ক্যালেন্ডারের রহস্য (The mystery of calendars)
  Evening talk at the Highland Park Housing Society, Calcutta, 31 Aug 2019.
• কল্পবিজ্ঞান (Science fiction)
  Invited talk at Vidyasagar College, Calcutta, 1 Aug 2019.
• সুভাষ মুখোপাধ্যায়ের স্মৃতি (Remembering Subhash Mukhopadhyay)
  Invited talk at the celbration of the birth centenary of Subhash Mukhopadhyay organized at Gorky Sadan, Calcutta. 14 Feb 2019. (Podcast link)
• বাংলা পরিভাষার বিবিধ প্রসঙ্গ (Topics on scientific terminology in Bengali)
  Invited talk organized by Nandini Cultural Society, Shantiniketan, 9 Dec 2018. (Podcast link)
• Scientific temperament and science education
  Invited talk at the conference on "Integrating science with society", organized by Breakthrough Science Society, 15 Dec 2018. (Podcast link)
• The fame of a scientist
  "Horizon lecture" conducted by the Physics Society, Indian Institute of Technology, Kanpur, on 05 Nov 2018. (Podcast link)
• বিজ্ঞানচর্চায় গণমাধ্যমের প্রভাব (Influence of mass media on the study of science)
  Invited talk at the conference on Science through Bengali, organized by Shri Shikshayatan, Calcutta, 1 Sep 2018.
• The history and mystery of calendars
  Public lecture at the Victoria Memorial Hall, Calcutta, 8 Aug 2018.
• জগদীশের সাহিত্য, রবীন্দ্রর বিজ্ঞান (Jagadish Bose's literature, Rabindranath Tagore's science)
  Invited talk at a conference on "Confluence of minds: Jagadish Chandra Bose and RabindraNath Tagore", organized by Bose Institute, held at the Tagore residence in Jorhasanko, Calcutta, 27 Mar 2018.
• বাংলায় বিজ্ঞানচর্চা (Study of science in Bengali)
  Invited talk at a conference on "Science through Mother tongue", organized by Bangiya Bigyan Parishad, held at the Science City auditorium, Calcutta, 24 Mar 2018.
• বিজ্ঞানের ভাষা (The language of scince)
  SibNarayan Ray memorial lecture, organized by Jijnasa magazine and Renaissance Publishers, 20 Jan 2018.
• History and mystery of calendars
  Invited talk at Sri Ramakrishna Shikshalay, Howrah, 11 Dec 2017.
• How to give good talks
  CARE seminar, Saha Institute of Nuclear Physics, 19 Sep 2017. (Podcast link)
• The history and mystery of calendars
  Alexander Duff Memorial Lecture, Scottish Church College, 12 Sep 2017.
• The history and mystery of calendars
  Institute Lecture, IIT Roorkee, 09 Aug 2017.
• The history and mystery of calendars
  Invited talk (on 28/4) at the Research Scholars' Training Programme held from 28 April to 04 May, 2017, organized by the Faculty Development Centre, Tripura University.
• Wave-particle duality and the birth of Quantum Mechanics
  Invited talk at the Physics Department, Raja Peary Mohan College, Uttarparha, 25 Feb 2017.
• বাংলায় বিজ্ঞানচর্চা (Study of science in Bengali)
  P. C. Ray Memorial lecture organized by the Breakthrough Science Society, 15 Jan 2017.
• ক্যালেন্ডারের রহস্য (The mystery of calendars)
  Public lecture organized by the New Garia Housing Society, 08 Jan 2017.
• The history and mystery of calendars
  Public lecture at IIT Ropar, 20 Oct 2016.
• The history and mystery of calendars
  Invited talk at the Humbolt Club, Kolkata, 10 Jun 2016.
• মহাকর্ষের ঢেউ (Gravitational waves)
  Invited talk organized by the Young Scientists Forum, held at the Senate Hall of Calcutta University, 04 Jun 2016. (Podcast link)
• Waves and particles
  Invited talk at the in-service course for Physics teachers for CBSE Schools, held at Kendriya Vidyalaya Cossipore, 24 May 2016.
• The history and mystery of calendars
  Invited talk at the Institute of Engineering and Management, Kolkata, 19 Apr 2016.
• দৈর্ঘ্যের পরিমাপ (Measurement of length)
  Invited talk at the Chemistry departmental re-union of the Jadavpur University, 02 Mar 2016.
• ক্যালেন্ডারের রহস্য (The mystery of calendars)
  Invited talk at the Serampore College, Srirampur, 08 Feb 2016.
• The history and mystery of calendars
  Invited talk as Guest Speaker at the Professor-X series of lectures, St. Xavier's College, Mumbai, 19 Jan 2016.
• ক্যালেন্ডারের রহস্য (The mystery of calendars)
  Invited talk at the Chatra Nandalal Institution, Srirampur, 14 Dec 2015.
• Matter and energy
  Invited talk as Guest Speaker at the M. C. Kejriwal Vidyapeeth, Liluah, Howrah, 10 Aug 2015.
• ক্যালেন্ডারের রহস্য (The mystery of calendars)
  Invited lecture at the Foundation Day Celebrations at the Indian Association for Cultivation of Science, Calcutta, 29 Jul 2015.
• ক্যালেন্ডারের রহস্য (The mystery of calendars)
  Invited lecture at the West Bengal State Science Congress held at the North Bengal University, Shiliguri, 28 Feb 2015.
• Journey to the world of fundamental particles
  Outreach program to commemorate the diamond jubilee of the Department of Atomic Energy of the Government of India, held at Institute of Physics, Bhubaneswar, 1 Feb 2015.
• Understanding the Higgs boson
  CMS outreach program held at the Saha Institute of Nuclear Physics, Calcutta, 8 Jan 2015.
• ক্যালেন্ডারের রহস্য (The mystery of calendars)
  Public lecture at Karimganj College, 20 Sep 2014.
• The world of neutrinos
  Invited lecture at the Outreach Program for the Indian Neutrino Observatory, held at Bardhaman University, Bardhaman, 1 Apr 2014.
• নগরায়ণ ও পরিবেশ (Urbanization and ecology)
  Invited lecture at the Science and Technology fair organized by PashchimBanga Bigyan Mancha, Kolkata, 1 Feb 2014.
• The world of neutrinos
  Invited lecture at the Outreach Program for the Indian Neutrino Observatory, held at Science City Auditorium, Calcutta, on 8 Nov 2013.
• মৌল কণা (Elementary particles)
  Talk at the "Cultivision" festival organized by the Research Scholars' Association of the Indian Institute of Cultivation of Science, 18 Apr 2013.
• মৌল কণা (Elementary particles)
  Prashanta Chandra Maholanobish Memorial Lecture given at the Annual Meeting of Science and Technology organized by the Government of West Bengal, 28 Feb 2013.
• উপেন্দ্রকিশোর ও সুকুমার (Upendrokishor and Sukumar)
  Public talk at the Annual Science Fair, 31 Jan 2013.
• Understanding the Higgs boson
  Talk at the Annual meeting of the Saha Institute Alumni Association, 17 Jan 2013.
• The history and mystery of calendars
  Talk at the Children's pavilion of the Indian Science Congress, 5 Jan 2013.
• What is the Higgs boson?
  Talk arranged by the "Gainsayers" and "Samanway" in Nalikul, Hooghly, 22 Sep 2012.
• What is the Higgs boson?
  Talk arranged by the "Bhabna" science society in Amta, Howrah, 2 Sep 2012.
• What is the Higgs boson?
  Talk given at a public seminar organized jointly by Science City and Saha Institute of Nuclear Physics, held at the Science City, Calcutta. 31 Jul 2012.
• What is the Higgs boson?
  Talk given at a public seminar organized by the "Breakthrough Science Society" at Jadavpur University. 28 Jul 2012.
• What is the Higgs boson?
  Talk given at a public seminar organized by "Howrah Bigyan Bhavna Samanwoy" at Sharat Sadan, Howrah. 22 Jul 2012.
• Small particles at high energies
  Seminar given at the Heritage Institute of Technology, Calcutta, 21 Mar 2012.
• কালের তর্জনী (The arrow of time)
  A series of five small talks (5 minutes each), Broadcast from the Akashbani Calcutta Radio Station, 13–18 Mar 2012.
• Kyalendarer rohosyo (The mystery of calendars)
  Invited lecture at St. Paul's College, Calcutta, 29 Feb 2012.
• বিজ্ঞান ও কবিতা (Poetry and science)
  Talk given at the Refresher Course organized by Department of Bengali, Jadavpur University, 8 Dec 2011.
• PrashantaChandra Maholanobish and Bengali orthography
  Conference on "Tagore, Bose and Mahalanobis : confluence of minds", organized by the J C Bose Trust, Calcutta, 21 Nov 2011.
• The elementary and the energetic
  Summer camp for high school students, Bengal Engineering and Science University, Howrah, 24 May 2011.
• ক্যালেন্ডারের রহস্য (The mystery of calendars)
  Rajendra Smriti Vidyapith, Konnagar, 14 Dec 2010.
• Doirghyer porimap (Measurements of length)
  Physics Department seminar, Presidency College, Calcutta, 03 Sep 2010.
• ক্যালেন্ডারের রহস্য (The mystery of calendars)
  Talk at the 85th Orientation Course for College and University Teachers organized by Calcutta University, 30 Jul 2010.
• ক্যালেন্ডারের রহস্য (The mystery of calendars)
  Talk at the 84th Orientation Course for College and University Teachers organized by Calcutta University, 19 Jul 2010.
• Doirghyer porimap (Measurements of length)
  Invited lecture at DST-INSPIRE Internship Science Camp, Kalyani University, 24 Jun 2010.
• ক্যালেন্ডারের রহস্য (The mystery of calendars)
  Invited lecture at Dinabandhu Andrews College, Garia, 12 Feb 2010.
• History and mystery of calendars
  Invited lecture at the Chemistry Department Reunion of Jadavpur University, 3 Feb 2010.
• Why a scientist's career is fun
  Invited lecture at a science camp organized by Jagadis Bose National Science Talent Search for high school students, 1 August 2009.
• মহাবিশ্বের শৈশব (The childhood of the universe)
  Invited lecture organized by the PashchimBanga Bigyan Mancha as part of their celebration of the international year of astronomy, 14 June 2009.
• বিজ্ঞান ও দর্শন (Science and Philosophy)
  AmarNath Bhaduri memorial lecture organized by Ekushe Songsod, 13 June 2009.
• জ্যোতির্বিদের যন্ত্রপাতি (The instruments of astronomy)
  Invited lecture at the celebration of the International Year of Astronomy organized by the Manindra-Narayan Trust, Calcutta, 10 Jan 2009.
• দৈর্ঘ্যের পরিমাপ (Measurements of length)
  Invited lecture at Narasingha Dutt College, Howrah, 18 Sep 2008.
• দৈর্ঘ্যের পরিমাপ (Measurements of length)
  Invited lecture at Bethune College, Calcutta, 15 Sep 2008.
• Measurements of length
  Bibharani Debi Memorial lecture at the Calcutta University, 21 May 2008.
• বাংলায় বিজ্ঞানের পরিভাষা (On scientific and technical terminology in Bengali)
  Invited lecture given at the "Celebration of 100 years of Vidyasagar College", Calcutta. 18 Mar 2008.
• বিজ্ঞানের পরিধি (The realm of science)
  DhirendraNath Gangopadhyay Memorial lecture of the Pavlov Institute, Calcutta. 20 Dec 2007.
• দৈর্ঘ্যের পরিমাপ (Measurements of length)
  Lecture at the Ramakrishna Mission Residential College, Narendrapur, 4 Oct 2007.
• দৈর্ঘ্যের পরিমাপ (Measurements of length)
  Lecture at the Science Day celebration at Visva-Bharati University, Shantiniketan, 1 Mar 2007.
• দৈর্ঘ্যের পরিমাপ (Measurements of length)
  Jatindra Mohan Das Sarma Memorial lecture at the Scottish Church College, Calcutta, 29 Nov 2006.
• জ্যোতির্বিদের যন্ত্রপাতি (The instruments of astronomy)
  Invited talk at a seminar on Recent Trends in Astronomy and Cosmology organized by the Sky Watchers' Association, Calcutta, 30 Jun 2006.
• Geometry of our universe
  Lecture at the Science Day celebration at the Saha Institute of Nuclear Physics, Calcutta, 28 Feb 2006.
• Forces: from Newton to Einstein
  Invited lecture at Ballyganj Shiksha Sadan, Calcutta, 23 Dec 2005.
• বল সম্পর্কিত ধারনা (The concept of Force)
  Invited lecture at the Institute of Physics, Basirhat, 22 Dec 2005.
• আইনস্টাইন ও আমরা (Einstein and us)
  Invited lecture at Baruipur Book Fair, 15 Dec 2005.
• Unification of forces
  Invited lecture at Maulana Azad College, Calcutta, 27 Sep 2005.
• Elementary particles
  Invited lecture at Bangabasi Evening College, Calcutta, 19 Sep 2005.
• মৌলিক পদার্থের উৎপত্তি (Origin of the elements)
  Invited lecture at Jogmaya Devi College, Calcutta, 12 Sep 2005.
• Geometry of the universe
  Invited lecture at Bidhan-Nagar College, Calcutta, 29 Jul 2005.
• আপেক্ষিকতার প্রাসঙ্গিকতা (The relevance of relativity)
  Invited lecture at a symposium organized by PashchimBanga Bigyan Mancha, held at Ballygunj Science College, Calcutta, 29 Apr 2005.
• Einstein and the corpuscular view of the universe
  Invited lecture at Dumdum Motijhil College, Calcutta, 1 Apr 2005.
• Is relativity useful?
  Invited lecture at Jaipuria College, Calcutta, 27 Jan 2005.
• Einstein without relativity
  Invited lecture at the annual session of the Breakthrough Science Society, Calcutta, 15 Oct 2004.
• মৌল কণা (Elementary particles)
  Lecture at Mahajati Bidyapith, Agarpara, 23 Sep 2004.
• মলমাস কাকে বলে? (What is a "malamas"?)
  Broadcast from the Akashbani Calcutta Radio Station, 18 Aug 2004.
• পারমাণবিক ঘড়ি (Atomic clocks)
  Broadcast from the Akashbani Calcutta Radio Station, 7 Aug 2004.
• Einstein and relativity
  Invited lecture at Jaipuria College, Calcutta, 22 Apr 2004.
• The mystery of calendars
  Invited public Lecture in the "Horizon" series organized by the Physics Society of the Indian Institute of Technology, Kanpur, 26 Mar 2004.
• The mystery of calendars
  Invited lecture at the 57th and 58th Orientation Course organized by Calcutta University, 23 Dec 2003.
• ক্যালেন্ডারের কথা (The story of calendars)
  Invited lecture at Sorojini Naidu Girls' College for Women, Calcutta, 16 Dec 2003.
• গালিলেয়োর জীবন ও কর্ম (Life and works of Galileo)
  Invited lecture at the West Bengal District Scheme Nurture Program organized by the Jagadish Bose National Science Talent Search, held at the National Council of Science Museum, Calcutta. 20 Oct 2003.
• মহাকালের সীমানা (The frontiers of cosmic time)
  Broadcast from the Akashbani Calcutta Radio Station on 25 Jul 2003.
• Einstein's biggest mistake?
  Invited talk at a symposium held at Behala College, Calcutta, 13 Dec 2002.
• Bengali Scientific terminology vis-a-vis scientific terms in English, Sanskrit and Hindi
  Talk given at the conference on "Scientific and Technical terminology in Bengali" organized by the Division of Human Resources of the Government of India and the West Bengal State Book Board, 16–18 Jan 2002.
  Invited talk.
• Science and values
  Talk given for Refresher course in Philosophy at Jadavpur University, Calcutta, 23 Aug 2001.
  Invited talk.
• What is the vacuum?
  Talk given to high school students of Patha-Bhavan, Shantiniketan, 31 Mar 2001.
  Invited talk.
• The story of the Cosmological constant
  Invited talk at a symposium held at Lady Brabourne College, Calcutta, 22 Feb 2001.
• Quantum theory and elementary particles
  Invited talk at the 1-day symposium on 100 years of Quantum Theory, St. Paul's College, Calcutta, 13 Sep 2000.
• History of measurements
  Five talks at the Summer school for school leaving students, Indian Association for the Cultivation of Science, Calcutta, 28 June to 7 July 2000.
  Invited talk.
• The mystery and the history of calendars
  Special evening talk, Inter-University Centre for Astronomy and Astrophysics, Pune, 10 Apr 2000.
• সময়ের পরিমাপ (The measurement of time)
  Broadcast from the Akashbani Calcutta Radio Station in April 2000.
• Particles in the universe
  Asutosh Roy Memorial Lecture 1999, Indian Institute for the Cultivation of Science, Calcutta, 24 Dec 1999.
• Science and non-science
  Sara Bangla Bignan-karmi Sammelan, Barasat, 23 Nov 1999.
  Invited talk.
• Particles
  Three talks at the Summer school for school leaving students, Indian Association for the Cultivation of Science, Calcutta, June 1999.
  Invited talk.
• জ্যোতির্বিদ্যায় তথ্যবিপ্লব (Information revolution in Astronomy)
  Shashtha Bangla Bignan O Projukti Congress, held at Bengal Engineering College, Howrah, India, 26–28 Feb 1999.
  Invited talk.

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Internet presence

• Palash Baran Pal's youtube channel, containing podcasts of different talks.
  

Audio-visual material uploaded by others

• প্রাকৃতিক ধ্রুবকের কথা (On the constants of Nature) 5th Ramkrishna Bhattacharya memorial lecture organized by Carvaka-Lokayata Trust, 20/12/2025. Recorded and uploaded by Amitava Bhttacharyya.
• নানা ভাষা নানা স্বর (Vowels in different languages) Suniti Kumar memorial lecture at the Institute of Language Study and Research, 15/01/2025. Recorded and uploaded by the organizers, with slides created by the speaker.
• মৌল কণা Haraprasad De memorial lecture at Vidyasagar College, Calcutta, on 23/12/2024. Recorded and uploaded by Vidyasagar College.
  
• রবীন্দ্রকাব্যে শব্দের ব্যবহার Talk given at the Tagore Research Institute on 27/09/2024. Recorded and uploaded by Bodhisattva Bhattacharya.
  
• Part 1 and Part 2 of the lecture "Great mistakes" given at the Ramakrishna Mission Vidyamandir on 23/12/2022. Recorded and uploaded by Bodhisattva Bhattacharya.
  
• Scientific temperament and school curriculum. Recorded and uploaded by the Breakthrough Science Society.
  
• On the National education policy 2020. Recorded and uploaded by the Breakthrough Science Society.
  
• Calendar talk at Victoria Memorial. Recorded and uploaded by the Victoria Memorial Hall. This is the link to Part 1 of the talk. The other parts can be seen at this link.
  
• Tips for giving good talks. Recorded and uploaded by the Saha Institute.
  
• Discovering particles. Recorded and uploaded by the Saha Institute.
  
• Einstein's fame Lecture given at IIT Kanpur. Recorded and uploaded by S. K. Gautam.
  
• At the Anjan Kundu memorial lecture. Recorded and uploaded by Sanjukta Ghosh.
  
• Elementary particles Recorded and uploaded by the P K College Physics Alumni Consortium.
  
• Dirac: the introvert genius Recorded and uploaded by Bethune College.
  
• Birth of a poem. Panel discussion, with Satyapriya Mukhopadhyay, Sriloy De and Rupomoy Bhattacharya. Organized and uploaded by Chondimondop.
  
• Vidyasagar 200. Talk given at the Asiatic Society, Calcutta. Recorded and uploaded by the Asiatic Society.
  
• Panel discussion on AKR (Amal Kumar Raychaudhuri) Organized by Chondimondop.
  
• Interview to the students at the Saha Institute
  
• On calendars. TV program, 01/11/2023. Uploaded by DD Bangla.
  
• Online interview taken by Abhijit Chowdhury for the Bigyanbhash youtube channel, 18 Aug 2021. (Link, part 1) (Link, part 2) Recorded and uploaded by Bigyanbhash.
• History and mystery of calendars. Recorded and uploaded by the Homi Bhabha Centre for Science Education. Talk given on 15/06/2017.
  

• পড়ার বইয়ের বাইরে বিজ্ঞান পড়া (Reading science outside textbooks) Telecast from Kolkata Doordarshan on 20/02/2025.
• Discussion on alphabet reform. A post in the channel Banglaobanglarprokriti, created and uploaded by this channel.
• A parrot's tale. Prof. Ranabir Chakravarti reading Rabindranath Tagore's 'The Parrot's Tale', translated into English by me. Recorded and uploaded by Samim Asgor Ali.
  

Visual material (text only)

• Incompleteness of quantum theory A semi-popular exposition of some aspects of quantum theory. Translation of a Bengali article by me, made by Suratna Das.
  
• কুশলপ্রশ্ন A very short one-act play.
  
• For translations of short stories and poems from Bengali into English, go to the translation page of the Parabaas magazine and search with my name.

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Other public appearances

• Chief guest at the School exhibition, Salt Lake Point School, Calcutta, 21 Jan 2024
• Appearance at the program "Bigyan Prasange" of the Calcutta Doordarshan (Television) Centre, for a discussion on "ক্যালেন্ডারের নেপথ্যে বিজ্ঞান" (Science facts behind calendars), 01 Nov 2023. (Link)
• Online interview taken by Abhijit Chowdhury for the Bigyanbhash youtube channel, 18 Aug 2021. (Link, part 1) (Link, part 2)
• Welcome address to the new batch of students at the Indian Institute of Engineering Science and Technology, Shibpur, 31 Jul 2019.
• Chief guest at the Annual Prize Distribution Ceremony, Bethune Collegiate School, Calcutta, 18 May 2018.
• Invited speaker at a panel discussion on "Information is knowledge", organized by Bhairab Ganguli College, Calcutta, 16 Mar 2018.
• Invited guest at the "Mathematics fair" organized by the West Bengal Mathematical Society, held at Baruipur, 03 Feb 2018.
• Invited guest at the "Sanjeebani Sabha" of the Bidhan-Nagar Government High School (BD Block), 19 Jul 2017.
• Invited guest at the 24th Birbhum District National Children Science Congress held at Rampurhat. 24 Sep 2016.
• Chief guest at the Convocation ceremony of Narasingha Dutt College, Howrah. 16 May 2015. Gave a talk on "The mathematization of Physics".
• Chief guest at the Diamond Jubilee celebration of AshokeNagar Adarsha Balika Vidayalay, AshokeNagar, North 24 Parganas. 11 Feb 2015.
• Panelist in an open session on a seminar on the discovery of the Higgs boson, held at Presidency College, Calcutta. 16 Jul 2012.
• Chief guest and keynote speaker for the Annual day at the Contai Public School, Purba Medinipur. 21 Jan 2012.
• Panelist in an open session of "Meet the Scientist" for school students, held at the West Bengal Science Fair, Calcutta. 20 Jan 2007.
• India's moon mission: is it the case of a dwarf reaching for the moon?
  Panelist in a discussion organized by "Desh" magazine on 1/2/2005, held at the Kolkata Book Fair, Calcutta.
• Impact of Science on people's psyche
  Panelist in a discussion organized by Orient Longman and Universities Press on 11/5/2003, held at the Peerless Inn, Calcutta.
• Corporate vs state sponsorship of science and the scientist's responsibility
  Panelist in a discussion at the Indian Association for the Cultivation of Science, Calcutta, 1/4/2003. Organized by the Research Students' Association of that institute.
• Speaker in an exhibition debate arranged by Bethune College Alumni Association, held at Science College, Calcutta. 21 Jul 2000.
  Topic: Good students are not studying Physics for the lack of future in the subject.
• Interview given on the Calcutta Dooradarshan (Television), first telecast on 28 Jun 2000.

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