1. Department of Mathematics, College of Science, King Saud University, P. O. Box 1142, Riyadh 11989, Saudi Arabia
2. Department of Mathematics, Maharani Janki Kunwar College, Bettiah, 845438 Bihar, India
3. Department of Mathematics, National Institute of Technology, Jamshedpur, 831014 Jharkhand, India
4. Nonlinear Dynamics Research Center (NDRC), Ajman University, Ajman, UAE
5. Department of Mathematics, University Centre for Research and Development, Chandigarh University, Gharuan, Mohali, Punjab, India