“…Mahto, D., Kumari, A. and Singh, K.M. have shown that there is no any change in the energy and entropy of black holes having zero spin and leading the second laws of thermodynamics ( 0 dS ≥ ) [5]. Mahto, D. and Kumari, A. proposed a model for the change in entropy of spinning black holes due to change in mass using first law of black hole mechanics for unit spinning parameter and angular momentum and also calculated their values for different spinning black holes in XRBs [6].…”