1. Department of Electronics and Communication Engineering, Karpagam College of Engineering, Coimbatore
2. Department of Electronics and Communication Engineering, Karpagam Academy of Higher Education, Coimbatore, India
3. Environmental Engineer, Karupa Foundation, Coimbatore, India
4. Department of Electronics and Communication Engineering, KPR Institute of Engineering and Technology, Coimbatore
5. Department of Scientific and Industrial Research, New Delhi, India