1. Centre for Mathematical Biology and Ecology, Department of Mathematics Jadavpur University 188, Raja S. C. Mallik Road Kolkata 700032 West Bengal India
2. Nonlinear Analysis and Applied Mathematics (NAAM)‐Research Group, Department of Mathematics, Faculty of Science King Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
3. Department of Mathematics Presidency University 86/1 College Street Kolkata 700073 West Bengal India