During the Rainy Season in India (Mid-June to the end of September), the intense heat that prevails in the Indian subcontinent causes a low pressure region over the Northern Plains in the Northwestern parts of the country. It is intense enough to attract the moisture-bearing winds from the Indian Ocean. Thus, the south-east trade winds from the Southern Hemisphere are attracted towards India. On crossing the equator, they are deflected to their right and blow over the Indian subcontinent as the south-west monsoon winds.