1. Department of Chemistry, Department of Basic Sciences & Humanities, Vignan’s Nirula Institute of Technology & Science for Women, Guntur, India
2. Division of Chemistry, Department of Sciences & Humanities, Vignan’s Foundation for Sciences, Technology and Research (Deemed to be University), Guntur, India
3. Department of Engineering Physics, College of Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram, India
4. Department of Chemistry, J.K.C.C, Acharya Nagarjuna University, Guntur, India