1. Department of Mathematics, Faculty of Sciences, Aligarh Muslim University, Aligarh-202002, India
2. Mathematical Science Department, Faculty of Sciences, Princess Nourah Bint Abdulrahman University, Riyadh-11546, Kingdom of Saudi Arabia
3. Department of Mathematics, Faculty of Sciences, Jamia Millia Islamia, New Delhi-110025, India
4. Department of Mathematics, College of Science, Jazan University, Jazan-45142, Kingdom of Saudi Arabia