• Dr. Sib Sankar Mal, NITK Surathkal. Gave a talk on " Applications of Metals in Biochemistry" on 28.02.2023.  ( National  Science Day - One-day workshop). 
• Dr. V. Sreenath,  National Institute of Technology Karnataka, Surathkal. Gave a talk on " Tale as old as time." on  28.02.2023.  ( National  Science Day - One-day workshop). 
• Dr. Subir Bhattacharya, Astrophysical Sciences  Division of Bhabha Atomic Research Centre, Mumbai. Gave a talk on " “The Universe at very high energies” on 28.02.2023. ( National  Science Day - One-day workshop). 
• Prof. Dr. Banibrata Mukhopadhyay, Senior Professor Department of Physics, Indian Institute of Science, Bengaluru. Gave  a popular talk on " What is cooking around dead stars?" on 10.02.2023
• Prof. Ranjeev Misra, Senior Professor Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune. Gave a Popular Talk on " The Nobel road to observing black hole systems " on 04.02.2023.
• Mr. Gautham Sabhahit, Armagh Observatory and Planetarium, Armagh, United Kingdom. Gave a talk on " Mass loss implementation of Very Massive Stars(VMS)" on 05.01.2023.
  

• Dr. (Mrs.) vandana Prasad, Birabal Sahni Institute of Palaeosciences, Lucknow, Uttar Pradesh. Gave a talk on " Evolutionary histroy of trop[ical angiosperms based on Indian pollen fossil records" on 16.12.2022. (Earth and Planetary Sciences Introductory Lecture Series (November -December 2022)).
• Prof.G.V.R.Prasad, Department of Geology, Centre for Advanced Studies University of  Delhi, Delhi. Gave Talk on  " Dinosaur Fossil Heritage of India" on 09.12.2022.  (Earth and Planetary Sciences Introductory Lecture Series (November -December 2022)).
• Prof. R. Shankar, Marine geology, Mangalore University Mangalagangotri, Karnataka. Gave Talk on " How is earth Science Important in Our Daily Lives?" on 09.12.2022.  (Earth and Planetary Sciences Introductory Lecture Series (November -December 2022)).
• Dr. R.G. Pizzone, INFN-LNS, Catania-95123, ITALY. Gave Talk on Cosmic Challenges in Nuclear Astrophysics: The Indirect Approach" on 05.12.2022.
• Dr. TR. Premathilake, Senior Lecturer, Postgraduate Institue of the Archaeology University of Kelaniya, Sri Lanka. Gave a talk on Understanding past and present tropical vegetation dynamics using the palynological and phytolith approaches: - an introductory discourse" on 03.12.2022.  (Earth and Planetary Sciences Introductory Lecture Series (November -December 2022)).
• Dr. Mohammed HAsan, Science Program Office, ISRO HQ, Bangalore. Gave a Public Talk on the " Indian Space Science Program" on 30.11.2022
• Prof. Dipank Banerjee,  Director, ARIES, Nainital & President, Astronomical Society of India (ASI). Gave a Public Talk on " ADITYA-L1: India's first Space Solar Observatory" on 29.11.2022.
• Prof. Durgesh Tripathi, IUCAA, Pune. Gave a Public Talk on " The Fiery star that Gives Us Life" on 28.11.2022. 
• Dr. Koji Wada, Principal Staff Scientist Planetary Exploration and Research Centre Chiba Institute of Technology Chiba, Japan.  Gave a talk on " A Space Impact Experiment in Hayabusa2" on 25.11.2022.  (Earth and Planetary Sciences Introductory Lecture Series (November -December 2022)).
• Prof. P. Poulose, Department of Physics, IIT Guwahati, Assam, India. Gave a talk on " Mysteries of the Cosmos: Story of Dark Matter" on 28.09.2022.
  
• Prof. Douglas J Klein FSCI, Texas A&M University @ Galveston, Texas, USA. Gave a talk on " Conjugated-Carbon Nano-Structures: Defects, Decorations, Functionalizations" on 03.08.2022
• Prof. Marek Jamrozy,  Astronomical Observatory of the Jagiellonian University Cracow, Poland. Gave a talk on " Extragalactic radio astronomy - the golden age of dynamic development and great discoveries " on 06.07.2022
• Dr. Jessica Budke,  Assistant Professor & Herbarium Director (TENN) Dept. of Ecology and Evolutionary Biology University of Tennessee Knoxville, TN. Gave a talk on " Connecting with Biodiversity Collections: Structure-Function Relationships and Morphological Evolution in Mosses" on 29.06.2022
• Prof. Dr. Carmen Herrmann, Institute of Inorganic and Applied Chemistry, University of Hamburg, Germany. Gave a talk on " Molecular electronics and spintronics as a challenge for firstprinciples methods" on 22.06.2022
• Prof. Balachandran Sathiapalan,  the Institute of Mathematical Sciences. Gave a talk on " Black Holes, Holography and Quantum Gravity" on 08.06.2022
• Dr. Gururaja K.V., is a faculty, researcher, Dean for master’s program in Environment and Society, and Associate Dean for Undergraduate Professional Programme Year  2 at Srishti Manipal Institute of Art, Design and Technology, MAHE, Bengaluru. Gave a talk on “ Beyond diversity, what do amphibians from the Western Ghats tell us?” on 11.03.2022
•  Prof. Ajit Kembhavi, Professor Emeritus, and former Raja Ramanna Fellow at the Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune. Former Director, IUCAA, Pune. Former Member, Space Commission of India. Gave a talk on “ The bending of light and the first Black Hole image” on 28.02.2022. (National Science Day Week 21-28 February 2022).
•  Prof. M. S. Valiathan, World-renowned cardiac surgeon, Was awarded Padma Vibhushan – India’s second-highest civilian award Former Vice-Chancellor, MAHE. Former President of the Indian National Science Academy gave a talk on “Chitra TTK valves - a triumphant repeat of Bhagiratha Yagna” on 26.02.2022. (National Science Day Week 21-28 February 2022).
•  Prof. G.C.Anupama, Formerly Dean and Senior Professor at Indian Institute of Astrophysics (IIA), Bangalore. A core member of the India TMT Coordination Centre (ITCC). She was the president of the Astronomical Society of India (ASI), and gave a talk on “Thirty Meter Telescope (TMT) and India’s role in its development” on 25.02.2022. (National Science Day Week 21-28 February 2022).
•  Mr. A. R. Shivakumar, Researcher, and Technology Promoter. Formerly a Senior Scientist at KSCST, Indian Institute of Science, Bangalore. He is popularly known as the Rain Man, gave a talk on “Science Technology & Innovation for a sustainable living around us” on 24.02.2022. (National Science Day Week 21-28 February 2022).
•  Dr. Anupama K, Palynologist & Paleoecologist, French Institute of Pondicherry, Puducherry, India, gave a talk on  “ Why does the past hold the key to the future?”  on 23.02.2022. (National Science Day Week 21-28 February 2022).
  
• Dr. Praveer Asthana, Currently a PSA Fellow in the Office of the Principal Scientific Adviser to the GOI, gave a talk on “ Mega Science Programme in India ─ Evolution and Prospects” on 22.02.2022. (National Science Day Week 21-28 February 2022).
• Dr. P R Vasudeva Rao, Vice-Chancellor, Homi Bhabha National Institute Mumbai, Former Director, Indira Gandhi Centre for Atomic Research (IGCAR), gave a talk on “ Dr. Homi Jehangir Bhabha: a legend lives on” on 21.02.2022. (National Science Day Week 21-28 February 2022).

• Prof. Francois Munoz, Interdisciplinary Physics Laboratory, Grenoble Alpes University; Saint-Martin-D Heres, France, gave a  talk on “Island biogeography, metapopulation, and conservation” on 01.09.2021

• Dr. Sreejith Padinhatteeri, Project Scientist, The Solar Ultraviolet Imaging Telescope  onboard “Aditya-L1 Solar Observatory, IUCAA, Pune, gave a  talk on “Aditya –L1 - India’s First Dedicated Mission to Study the Sun” on 16.07.2021

• Dr. Vinay Kashyap, Astrophysicist, Center for Astrophysics | Harvard & Smithsonian, Calibration Scientist, Chandra X-ray Center, gave a talk on "X Rays from Stars" on  10.07.2021

• Prof. Amit Roy, Former- Director Inter-University Accelerator Centre, New Delhi, gave a  talk on  “Nuclear Physics: Past, Present, and Future” on 03.07.2021

• Prof. Vishwas S. Kale, Former Head & Professor, Department of Geography, SP Pune University, Pune, gave a  talk on “Sahyadri: The Benevolent Mountain -The morphology and geological history of the Western Ghats” on 18.06.2021

• Prof. Jeong-Hyuck Park, Department of Physics, Sogang University, Korea, gave a talk on “How Many is Different? Question of Emergence and Answer from Ideal Bose Gas” on 15.06.202
• Dr. William F Laurance, Distinguished Research Professor, Australian Laureate and  Prince Bernhard Chair in International Nature Conservation (Emeritus);  Director, Centre for TESS, College of Science & Engineering, James Cook University, Australia, give a talk on “Lecture on Environmental Synergisms and the Fate of Nature”  on 22.05.2021                                                               

                                                                                                                              2020                                                                                                               

• Dr. R. Nagendra, Professor, and Head of Geology, Anna University, Chennai, give a talk on “Deep in age Fossils: Aid to unraveling natural events” 19.11.2020
• Dr. T. N. Prakash Scientist-G (Retd), Former Director (I/C) and Group Head, Coastal Processes Group at the National Centre for Earth Science Studies, Ministry of Earth Science, GOI, Trivandrum, Kerala, give a talk on “Hydrodynamics of Beach Placer Deposits and their Sustainable Exploitation – A Way Forward” on 12.11.2020

• Dr. Anand Narayanan, Associate Professor, Indian Institute of Space Science and Technology, Thiruvananthapuram, Kerala, give a talk on “Exoplanets and the Search for Habitable Worlds” on 25.02.2020