We use surface and geophysical subsurface data to constrain the structure and evolution of the central Kirthar Fold Belt, a mountain belt on the western margin of the Indian Plate in Pakistan. It can be shown that the extension phase prior to the collision of India with Asia has a major impact on how the rocks deform today. The inherited structures in the crystalline basement reactivate in an opposite sense and complexly deform the sedimentary rocks that have deposited before collision.