NORTHWESTERN India that runs close to the contact between the Vindhyan sedimentary rocks (ca. 1400-600 Ma) and the pre-Vindhyan rocks.The Great Boundary Fault is a major tectonic lineament in the southeastern Rajasthan along the Bundi-Sawaimadhopur hills.It separates ARAVALLI and Hadoti.It is EXTENDED over Chittorgarh, Bundi, and Sawai Madhopur.The Great Boundary Fault Zone contains DIFFERENT types of fault rocks, ductile shear zones, and multiple sets of fractures and faults.The geology of the Himalayas is characterized by three major tectonic UNITS:The Main Central Thrust (MCT)The Main Boundary Thrust (MBT)The Himalayan Frontal Thrust (HFT)/(MFT)Main Central Thrust (MCT) Zone separates the Greater Himalayas in the north from lesser Himalayas in the south.The Main Boundary Thrust (MBT) zone separates the outer Himalayas from the lesser Himalayas.The Himalayan frontal faults is a series of reverse faults that demarcates the boundary of the Shivalik from the alluvial expanse of the Indo-Gangetic plains.