1. Deputy Superintendent of Police, Virudhunagar, Tamil Nadu, India
2. Department of Mathematics, Saraswathi Narayanan, College, Madurai, Tamil Nadu, India
3. Department of Mathematics, Sri Sivasubramaniya Nadar College of Engineering, Chennai, Tamil Nadu, India
4. Ramanujan Research Center in Mathematics, Saraswathi Narayanan College, Madurai, Tamil Nadu, India