I am Shankar D Pathak and I work in the field of Theoretical Cosmology & Astrophysics (Gravitational Waves, Dark Energy and Dark Matter, Black hole). In recent past I completed my post-doctoral fellowship with Professor Dr. Shi Yuan Li (Shandong University, China). My research activity in Professor's Li's group was focused on exploring the theoretical as well as the phenomenological aspects of real scalar fields in cosmology. My results have been recognized by several peer reviewed journals.Currently I am involved with the theoretical aspects of dynamical dark energy in the universe and its quantum effects on gravitational waves.