1. Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
2. Government General Degree College at Salboni, Bhimpur, Paschim Medinipur 721516, India
3. Central Ayurveda Research Institute, CCRAS, Ministry of Ayush, Govt. of India, 4-CN Block, Bidhannagar, Sector-V, Kolkata 700091, India