30th Annual Report 2017-18

119 Saha equation and the dawn of astrophysics, University of KwaZulu-Natal, SouthAfrica,April 20, 2017. The quasi-steady state cosmology (QSSC) , National Institute for Theoretical Physics, SouthAfrica,April 21, 2017. Logical thinking , 16th INSPIRE Internship Camp, Pt. Ravishankar Shukla University, Raipur,August 24, 2017. Logical reasoning in science , Bose Institute, Kolkata, November 23, 2017. Ancient Indian science in a historical context , Meeting on History of Indian Science, Bose Institute, Kolkata, November 24, 2017. How well do we know our universe? , IIT -Madras, Chennai, September 25, 2017; and IISER, Kolkata, November 25, 2017 Gravitational waves frommini-creation events , International Conference on the Physical Universe, Nagpur, February 27, 2018. Searches for extraterrestrial life , BITS - Pilani, Hyderabad, March 16, 2018. T. Padmanabhan Einstein's legacy: The first and the next 100 years of GR , Research Scholars Day - 2017, IIT-Madras, Chennai, April 5, 2017 (Key note lecture). Action principles for GR, IIT-Madras, Chennai, April 6, 2017. The cosmos , Department of Physics, Cochin University of Science and Technology, Kochi, January 10, 2018. The quantum - classical connection , Newman College, Thodupuzha, January 11, 2018 (Professor K.S. Tomy Endowment Lecture). Aseem Paranjape Halo assembly bias: The role of local tides, Workshop onNon-linear Universe , Smartno, Slovenia, July 16 -22, 2017. DLA environments, InternationalWorkshop onQSOAbsorption Lines, IUCAA, December 12 -14, 2017. The assembly of halos and galaxies, 36thAnnual Meeting of theAstronomical Society of India, Osmania University, Hyderabad. February 5 - 9, 2018 (Plenary talk). Dark matter and galaxies, Joint Astro and Particle Physics Meeting, IISER, Pune, February 25, 2018 (Invited). Niladri Paul An order statistics approach to the halo model for galaxies, Workshop in the School on Open Problems in Cosmology, International Centre for Theoretical Physics, SouthAmerican Institute for Fundamental Research, Sao Paulo, Brazil, July 17 - 28, 2017.