1. Post Graduate and Research Department of Botany, St. Berchmans College, Changanacherry, Kottayam, India
2. Phytochemistry and Phytopharmacology Division, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Pacha-Palode, Thiruvananthapuram, India
3. Department of Biotechnology, Sree Narayana Arts and Science College, Kumarakom, Kottayam, India
4. Post Graduate and Research Department of Botany, St. Albert’s College, Kochi, India