
I work on Theoretical High Energy Physics, broadly defined. My current research is on nonperturbative quantum gravity/string theory  specifically, on topics such as AdS/CFT, (M)atrix Theory, Higher Spin (ChernSimons) gravity. These nonperturbative approaches are inherently "holographic". Holographic principle in gravity is the deepest insight to have emerged in the recent past and is now recognized to be the underlying principle of quantum gravity. The "holographic dual" field theories describe the dynamics of the truly gaugeinvariant degrees of freedom of quantum gravity. I have tried to use these holographic dual field theory descriptions to understand how a quasilocal bulk spacetime emerges, how to recover regions inside black hole horizons and how do gravitational singularities get resolved. I am also interested in nonabelian gauge theories, lower dimensional toy models of gravity and quantum descriptions of cosmology. Here is a link to my publications.
Spring/Winter 2017 
PH 1027: Electromagnetism and Maxwell's Equation, for freshman year engineering (B.Tech) majors
PH 6458: Gravitation and Cosmology, for advanced undegraduates (B.Tech), M.Sc. and beginning graduate students (Ph.D)Past Teaching 
Fall2016 PH 3887: Introduction to General Relativity, for Honors track EP students.
PH 6297 : Classical Field Theory (Fractal). Course website: piazza.com/iit_hyderabad/fall2016/ph6297/home .
Winter/Spring 2016 (Jan June 2016)  PH 6887: Introduction to General Relativity (Fractal). Course Website: https://piazza.com/iith.ac.in/spring2016/ph6887/home.
Ph.D (2010), Brown Univ., Providence, RI 02912.
M.Sc (2004), Indian Inst. of Technology, Kanpur (IITK).
B.Sc (2002), Presidency Coll., Univ. of Calcutta, Kolkata.