Pasagadgu Sion Kumari (Registration No. 10PP19A28024) Ph.D. student of AcSIR will defend thesis entitled “Characterization of 3D shallow sub-surface geology of Koyna and Lonar crater regions, Deccan volcanic province using high frequency seismic noise tomography ” on October 08, 2025 at CSIR-National Geophysical Research Institute, Hyderabad Ph.D work was completed under the supervision of Dr. Sandeep Kumar Gupta, Professor, AcSIR/CSIR-IICT, Hyderabad