He initiated paleoseismological work at various parts of the country including Killari (Latur), Kerala, Rann of Kachchh, Saurashtra, Cambay, Panvel (Maharashtra), Assam, Central Himalaya and Andaman-Nicobar region. His work prior to 2001 Gujarat earthquake on the 1819 Rann of Kutch earthquake and the linear elevated tract of land called "Allahbund" in the low-lying Rann in the northwest India has led to basic understanding on earthquake processes in the north western part of India.