1. Department of Mathematics, National Institute of Technology Mizoram, Aizawl, India
2. Department of Mathematics, Malla Reddy Engineering College, Telangana State, Hyderabad, India
3. Department of Mathematics, Faculty of Science, Khalid University, Abha, King, Saudi Arabia
4. Department of Mathematics, Faculty of Science, South Valley University, Qena, Egypt
5. Department of Mathematics, B V Raju Institute of Technology, Narsapur, Medak, Telangana State, India