Give reasons:

The bulk of rainfall in India is concentrated over a few months.

The bulk of rainfall in India is received during the four months of the rainy season i.e. June, July, August and September. This is the period of South-West Monsoons blowing from sea to land. These sea to land Winds are the rain giver, as these moisture-laden winds are on-shore winds. The tropical cyclones add to the amount of rainfall. Easterly tropical jet stream, too, helps in the monsoonal rain during this period.