I have completed Ph.D degree in 2020 at IIEST, Shibpur (India). I have been devoted myself for the last four years for working on “Qualitative studies on heterogeneous dynamics of cancer immune system” under the supervision of Prof.  Pritha Das. My research topics include nonlinear dynamical systems, cancer dynamics with drugs, mathematical modeling of infectious disease, time delay in a deterministic and stochastic system, noise-induced system, chaos, and optimal control theory.