Why does Chennai receive less rainfall through South-West monsoon?

Why does Chennai receive less rainfall through South-West monsoon?

Chennai is located in the South-Eeastern coast of India. It receives less rainfall through South-West monsoon due to the following reasons
(i) Bay of Bengal branch of South-West monsoon passes parallel to Chennai coast.
(ii) Due to the presence of Western Ghat on its way of flow, Arabian sea branch of South-West monsoon could not cross over and give little or no rain in Chennai.

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