1. P.G. Department of Chemistry, L.S. College, B.R.A. Bihar University, Muzaffarpur-842001, Bihar, India
2. Department
of Chemistry, North Eastern Regional Institute of Science and Technology, Nirjuli (Itanagar), Arunachal Pradesh-
791109, India
3. Department of Chemistry, Navyug Kanya Mahavidyalaya, University of Lucknow, Lucknow-226004,
Uttar Pradesh, India
4. Department of Chemistry, D.D.U. Gorakhpur University, Gorakhpur-273009, UP, India