Research Interest (s) : My research interest involves probing fundamental nature of dark matter, dark energy, neutrinos through cosmological observations. Cosmology can play the role of particle physics laboratory as fundamental or microscopic nature of particles can imprint in the large scale observations like CMB, galaxy formation and 21cm signals from high red-shift. In spite of two decade of search through ground based and satellite experiments nature of dark matter is still a mystery. My research focuses on how future cosmological observations like next generation CMB experiments, 21 cm signal from epoch of re-ionisation and dark matter rich dwarf galaxy data can shed light on the unknown component of universe. I am also involved in probing nature of dark energy, cosmic neutrino through theoretical as well as observational study. Student(s): Ravi Kumar Sharma Selected Publications (s)

• Constraints on the epoch of dark matter formation from Milky Way satellitesSubinoy Das, Ethan Nadler
• Alleviating the H_0​ and σ_8 ​ anomalies with a decaying dark matter modelKanhaiya L. Pandey, Tanvi Karwal, Subinoy Das
• Early Mass-varying Neutrino Dark Energy: Nugget Formation and Hubble AnomalyA Gogoi, R Sharma, P Chanda and Subinoy Das