1. Department of Mathematics, Alagappa University, Karaikudi 630003, Tamil Nadu, India,
2. Ramanujan Centre for Higher Mathematics (RCHM), Alagappa University, Karaikudi 630003, Tamil Nadu, India
3. Department of Mathematics, Alagappa University, Karaikudi 630003, Tamil Nadu, India
4. Department of Electronics and Communication Engineering, Malla Reddy Engineering College and Management Sciences, Telangana, India