What was formed from the collision of the indian landmass with the asian continent.

The Tibetan Plateau and the  Himalayas

Explanation:

    The Tibet Plateau is a geological formation located in East Asia, between the Himalayas and the Taklamakan Desert, where it covers the so-called Tibetan autonomous region and a few other Chinese provinces, being present in other countries such as Myanmar and India.

    As it exceeds 5000 meters in altitude, it can be said that it is an uninhabitable area, having earned the nickname of the roof of the world, since it is the largest among all the plateaus in the world.

   The Himalayas, is the highest mountain range on planet Earth, bordering the Indo-gangetic plain and the Tibetan plateau, being present in five countries, including Pakistan, India and China which includes Tibet, it is in the Himalayas Mount Everest.