1. Department of Physics Acharya Nagarjuna University Guntur India
2. Department of Physics Shri Vishnu Engineering College for Women (A) Bhimavaram India
3. Department of Physics Government Institute of Textile Technology Guntur India
4. Crystal Growth & Nanoscience Research Center Government College (A) Rajahmundry India
5. Department of Physics V.R. Siddhartha Engineering College (A), Kanuru Vijayawada India