The most of the rainfall in India is brought in by the ___________.
(D) South - west monsoon
The south-west monsoon winds bring rainfall in India. It causes over 80% of the rainfall over the nation from June to September. The south – west monsoon begins from the Indian ocean and is divided into two branches, the Arabian ocean branch and the Bay of Bengal branch.
Therefore, the answer is South-west monsoon
So, the correct option is (D)