Mitra, Samik2025-04-072025-04-072025ROLL NO.196121026https://gyan.iitg.ac.in/handle/123456789/2852Supervisor: Das, SantabrataOne of the most efficient energy sources in the universe is matter accretion onto compact objects, such as black holes (BHs) and neutron stars (NSs). With the presence of an ample amount of angular momentum, this convergent matter cannot fall radially onto the central object. Instead, it forms a swirling disk-like structure widely known as the accretion disk. One of the major questions in accretion theory is to explain the angular momentum and energy transport within the disk.enThesis