Answer:
the Himalayas
The Purvanchal Range, or Eastern Mountains, is a sub-mountain range of the Himalayas in northeast India. It lies south of the Brahmaputra valley.
it was affected Because both these continental landmasses have about the same rock density, one plate could not be subducted under the other. The pressure of the impinging plates could only be relieved by thrusting skyward, contorting the collision zone, and forming the jagged Himalayan peaks.
Step-by-step explanation: