• Professor and Coordinator - Centre of Excellence for Biophotonics, Department of Atomic and Molecular Physics, MAHE, Manipal (2016 - Present)

• Dr. T M A Pai Endowment Chair for Biophotonics -  Manipal Academy of Higher Education, Manipal (2018 - Present)

• Professor and HOD - Department of Atomic and Molecular Physics, MAHE, Manipal (2010 - 2022)

• Regular Associate - International Centre for Theoretical Physics, Italy (2002-2010)

• Associate Professor and HOD - Department of Atomic and Molecular Physics, MAHE, Manipal (2004 - 2010)

• Assistant Professor - Department of Atomic and Molecular Physics, MAHE, Manipal (2002 - 2004)

• Assistant Professor - Govt. Medical College, Pariyaram, Kannur, Kerala (1997 - 2002)

• Lecturer - Mahatma Gandhi College, Kannur University, Kannur, Kerala (1996 - 1997)

• Research Associate - Biophotonics - International School of Photonics, Cochin University of Science and Technology (CUSAT), Cochin, Kerala (1995-1996)

• Research Associate - Snow Physics - Snow and Avalanche Study Centre, Defence Research and Development Organisation (DRDO), Manali, Himachal Pradesh (1994-1995)

• Post-Doctoral Fellow - Molecular Spectroscopy and Quantum chemistry - Banaras Hindu University (1994)

• Ph.D - Physics - Banaras Hindu University (1992)

• M.Sc - Physics - Banaras Hindu University (1986)

International/National conferences - 6

Symposiums - 29

International/National Workshops - 5