In summer, the sun moves towards the north, it means, it shines straight over the Tropic of Cancer. As a result, all the air pressure belts as well as the winds belts also start moving towards the north. Thus, the complete flow of jet stream begins moving towards the north of Tibetan plateau in the form of a major current. As a result of the movement of this flow towards the north, winds start blowing from the Indian ocean region to the north. This is the process of the formation of Summer Monsoon.
