1. Department of Computer Science, Kalyani Mahavidyalaya, Kalyani-741235, India. E-mail: sampa.rani.bhadra@gmail.com
2. Department of Computer Science and Engineering, SRM University, Amaravati, India. E-mail: ashokkumar.p@srmap.edu.in
3. Department of Computer Science and Engineering, University of Kalyani, Kalyani-741235, India. E-mail: utpal01in@yahoo.com