1. PG & Research Department of Chemistry Government Arts College for Men Chennai India
2. Medicinal Chemistry Research Laboratory, Department of Pharmacy Birla Institute of Technology and Science, Pilani Campus Pilani, Rajasthan India
3. Process R&D Orchid Pharma Ltd. Chennai India
4. Institute for Tuberculosis Research, College of Pharmacy University of Illinois at Chicago Chicago Illinois USA
5. PG & Research Department of Chemistry Chikkanna Government Arts College Tiruppur India