1. Phytochemistry and Phytopharmacology Division, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Thiruvananthapuram, India
2. Department of Chemistry, Sri Paramakalyani College (Manonmaniam Sundaranar UniversityTirunelveli), Alwarkurichi, India
3. Plant Genetic Resources Division, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Thiruvananthapuram, India