(a) Tamil Nadu lies on the leeward side of the Western Ghats because of which it does not receive any rainfall in summer due to the south-west monsoon. However, in winter, the north-east monsoon picks up moisture from the Bay of Bengal and sheds rainfall in Tamil Nadu.
(b) Mumbai lies on the windward side of the Western Ghats where the south-west monsoons strike first and are forced to shed their moisture. Chennai lie on the east which does not receive any rainfall due to the south-west monsoon. The rainfall in winter is substantially less than Mumbai.
