1. Govt. of India, Ministry of Home Affairs, Central Forensic Science Laboratory, Ramanthapur, Hyderabad, India
2. Indian Institute of Chemical Technology, Organic Chemistry-II, Tarnaka, Hyderabad, India
3. Govt. of India, Ministry of Home Affairs, Central Forensic Science Laboratory, Chandigarh, India
4. Osmania University, University College of Science, Department of Chemistry, Forensic Science Unit, Hyderabad, India