1. Associate Professor at Department of Physics, BIT, Mesra, Ranchi from June 28, 2012 to till date.
2. Assistant Professor at Department of Physics, BIT, Mesra, Ranchi from Nov 2006 to June 2012.
3. Senior Research Associate at Department of Department of Elec. Engineering, Indian Institute of Technology, Mumbai, from March to Nov 2006.
4. Guest Lecturer & Research Scholar at Department of Physics, National Institute of Technology, Rourkela, from Aug 2001 to March 2006.