1. Analytical and Environmental Science Division and Centralized Instrument Facility CSIR-Central Salt and Marine Chemicals Research Institute G. B. Marg Bhavnagar 364002 Gujarat India
2. Division of Molecular Synthesis & Drug Discovery Centre of Biomedical Research, SGPGIMS Campus Raebareli Road, Lukhnow Uttar Pradesh 226014
3. Department of Chemistry Banaras Hindu University Varanasi 221005 India