1. Spectrophysics Research Laboratory, PG & Research Department of Physics, Pachaiyappa’s College for Men, Chennai, India
2. PG Department of Physics, Bhaktavatsalam Memorial College for Women, Chennai, India
3. Research & Development, SAIF, St.Peter’s Institute of Higher Education and Research, Chennai, India
4. Research & Development, Kamaraj College of Engineering and Technology, Virudhunagar, India
5. PG & Research Department of Biochemistry, Bhaktavatsalam Memorial College for Women, Chennai, India