1. Department of Electronics and Communication Engineering Sriram Engineering College Perumalpattu India
2. Department of Physics Karpaga Vinayaga College of Engineering and Technology Madhuranthagam, Chennai India
3. Department of Mathematics Sri Venkateswara College of Engineering Sriperumbudur India
4. Research Centre for Solar Energy, Department of Engineering Physics, College of Engineering Koneru Lakshmaiah Education Foundation, Green Fields, Vaddeswaram Guntur India