1. Department of Chemistry University of North Bengal, Raja Rammohunpur, Darjeeling West Bengal 734013 India
2. Department of Chemistry National Institute of Technology, Agartala, Barjala Jirania Tripura 799046 India
3. Centre for Healthcare Science and Technology Indian Institute of Engineering Science and Technology West Bengal 711103 India
4. Department of Pharmaceutics National Institute of Pharmaceutical Education and Research, Kolkata West Bengal 700054 India