Present Designation     

• Professor, Department of Chemistry, Birla Institute of Technology and Science                                       
• Sh BK Birla and Smt Sarala Birla Chair (BITS), Pilani, Hyderabad Campus 
• Editor, Journal of Photochemistry and Photobiology B Biology (Elsevier Publishers)

Professional Career

• Scientist B (October 1988–September 1991): Regional Research Laboratory (CSIR), Trivandrum, India.
• AvH Post–doctoral Research Fellow (March 1992–December 1993): Institute of Organic Chemistry, University of Wurzburg, Germany. 
• Scientist C (October 1991–September 1996): Regional Research Laboratory (CSIR), Trivandrum, India.
• Scientist EI (October 1996–December 2001): Regional Research Laboratory (CSIR), Trivandrum, India.
• Visiting Scientist (April 1997–March 1998 and November 2001–December 2001): School of Chemistry and Biochemistry, Georgia Institute of Technology, USA.
• Visiting Scientist (January–May 2000, April–July 2001, November -December 2005, March- April 2009): Institute of Pharmacy, University of Mainz, Germany.  
• Scientist EII (January 2002–December 2005): Regional Research Laboratory, CSIR, Trivandrum, India.
•  Scientist F (January 2006–August 2010): CSIR-National Institute of Interdisciplinary Science and Technology (formerly, Regional Research Laboratory), CSIR, Trivandrum.
• Scientist G / Chief Scientist (September 2010– September 2013): CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum.
• Head, Chemical Sciences and Technology Division (Sept 2010-Sept 2013) CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum.
• Director (October 9, 2013-June 30, 2018):CSIR-North East Institute of Science and Technology (CSIR-NEIST) (Formerly, Regional Research Laboratory), Jorhat, Assam, India.
• Honorary Project Advisor (September 2018-December 2019):CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India.
• Sh BK Birla & Smt Sarala Birla Chair Professor (January 6, 2020-till-date): Department of Chemistry, Birla Institute of Technology and Science (BITS), Hyderabad Campus, India.

Academic Background 

• B. Sc., 1979: Osmania University, Hyderabad, Andhra Pradesh, India
• M. Sc., 1981: Kakatiya University, Warangal, Andhra Pradesh, India
• Ph. D., 1988: Indian Institute of Technology, Kanpur, Uttar Pradesh, India