According to the Theory of the Continental Drift, the Indian Subcontinent was , millions of years ago, part of a supercontinent, called Pangaea which broke into two mini supercontinents, namely, Gondwana and Laurasia . The Indian Subcontinent remained attached to Gondwana until it also broke into pieces about 125 million years ago. The Indian Plate then drifted northward toward the Eurasian Plate and started its journey towards present-day Tibet where it displaced the Tethys Ocean and created the Himalaya Mountains and the Tibetan Plateau in South Asia. This push, which is continuing, is causing parts of the Asian continent to deform westward and eastward on either side.

These geological developments have some serious implications for Pakistan and are discussed in this podcast

This episode is also available as a blog post: https://shahidhussainraja.wordpress.com/2021/04/07/geological-history-of-pakistan-its-relevance-for-today/