· Professor, Delhi University2021–
· Associate Professor, Delhi University2018–2022
· Assistant Professor, Delhi University2009–2018
· Assistant Professor, Rajiv Gandhi Institute of Petroleum Technology, Ratapur Chowk, Rae Bareli- 229316 (UP)2008–2009
· Centenary Postdoctoral Fellow, Indian Institute of Science2007–2008
· Research Associate, WADIA INSTITUTE OF HIMALAYAN GEOLOGY DEHRADUN2006–2007
· Doctor of Philosophy (Ph.D.), Geology, Delhi University2001–2006
· Master of Philosophy (M.Phil.), Geology, Delhi University1999–2001
· Master of Science (M.Sc.), Geology, Banaras Hindu University1997–1999
· Bachelor of Science (B.Sc.), Geology, PPN College Kanpur1994–1997