1. Department of Computer Science and Engineering, Amrita School of Computing, Amrita Vishwa Vidyapeetham, Chennai, India
2. Department of Mathematics, Government Engineering College at Jagdalpur, Jagdalpur, India
3. Department of Information Systems, College of Computer and Information Sciences, King Saud University, Riyadh, Saudi Arabia
4. Department of Mathematics, Gautam Buddha University, Noida, India