1. Department of Civil Engineering, V. R. Siddhartha Engineering College (Autonomous), Vijayawada, Andhra Pradesh, India
2. Corrosion and Fouling Division, Bharat Petroleum Corporate R & D Centre, Greater Noida, Uttar Pradesh, India
3. Department of Chemistry, V. R. Siddhartha Engineering College (Autonomous), Vijayawada, Andhra Pradesh, India