Knowledge is the greatest treasure – The more you give the more you gain

Below are the links to a few selected talks I have given at different places:

• Our Universe : An Expanding Mystery (A popular level introduction to the Universe, suitable for School students and Science enthusiasts)

• Dark, Darker, Darkest; And Some Light (A public lecture on the dark matter and dark energy)

• Lights, Camera, Universe (Slides of my lectures in the OCSC for Astronomy Olympiad 2025, suitable for advanced School and College students)

• Long Road to Black Holes: from Mystery to Reality (A popular talk on history and discoveries related to black holes)

• Breakthroughs in Cosmology and Astrophysics in the last 100 years (A public lecture suitable for Undergrads and Masters students)

• How many parameters for our Universe? (An overview on the topic, suitable for advanced Masters and Research students)

• Tensions in the light of present and future observations (A review talk suitable for advanced Masters and Research students)

• Inflationary Cosmology Post-Planck 2015 (A review talk on status of inflation after Planck 2015 data release)

• A theorist’s take-home message from CMB (A review talk on CMB Physics)

• Lambda or not too Lambda? (An overview of dark energy with recent data)

• The Haves and Have-nots of Brane Cosmology (A technical talk on this specialized topic)

• Puzzles of Modern Cosmology : Some (Random) Steps Forward (A technical overview of Modern Cosmology, includes some of my earlier works)

• Do We Live on a Brane? (A comparatively older talk based on some of my earlier works)

I enjoy teaching, both at advanced level and basic level. Here are some of the courses I usually teach/ have taught at some point:

• Early Universe and Inflationary Cosmology , in IUCAA-BITS Autumn School on Cosmology, BITS Pilani (2013)

• Astroparticle Physics , in XXVII DST SERC Main School on Theoretical High Energy Physics, Saha Institute of Nuclear Physics, Kolkata (2012)

• Statistical Applications to Cosmology , in Workshop on Mathematical Methods in Physical Sciences, NIT Silchar (2016)

• Inflation and Early Universe, in Winter School on Cosmology, ISI Kolkata (2015-2016)

• Elementary Cosmology in Orientation cum Selection Camp for XXV International Astronomy Olympiad 2021, National Council of Science Museum (NCSM), Govt. of India (2021), tentative

• Advanced Techniques of Cosmology and Astroparticle Physics (Special Course offered to Doctoral Students, ISI Kolkata)

• General Relativity and Cosmology (Offered at PhD Course Work for Doctoral Students, ISI Kolkata)

• Quantum Field Theory and Particle Physics (Offered at PhD Course Work for Doctoral Students, ISI Kolkata)

• Mathematical Methods for Physicists (Offered at PhD Course Work for Doctoral Students, ISI Kolkata)

• Topics in Mathematical Physics (Offered to Postgraduate Students MStat, ISI Kolkata)

• Quantum Mechanics (Offered to Undergraduate Students BStat, ISI Kolkata)

• Special Theory of Relativity (Offered to Undergraduate Students BStat, ISI Kolkata)

• Classical Mechanics (Offered to Undergraduate Students BStat, ISI Kolkata)

• Electromagnetic Theory (Offered to Undergraduate Students BStat, ISI Kolkata)

• Electricity and Magnetism (Undergraduate Course, Ramakrishna Mission Vidyamandira, Belur)

Hope to upload lecture notes of these courses some day.