1. Department of EEE, Annamalai University, Chidambaram, Tamil Nadu, India
2. Department of EEE, Lendi Institute of Engineering & Technology, Vijayanagaram, AP, India
3. Department of Electrical Engineering, Government College of Engineering, Tirunelveli, Tamilnadu, India
4. Department of EEE, V. R. Siddhartha Engineering College, Kanuru, AP, India