Asymptotic symmetries, Black hole thermodynamics., Conserved current and conserved charges, Mathematical aspects of gravitational waves in de Sitter space-times, Multipolar structure of space-times
C-229, Birla Institute of Technology & Science, Pilani Hyderabad Campus Jawahar Nagar, Kapra Mandal Dist.-Medchal-500 078 Telangana, India