I agree with above posts... but here is my 2c on avoiding Raincoats.

Personally I avoid raincoats in India because it gets very uncomfortable
wearing them in the hot and humid weather. Breathable raincoats/raincoats
simply wont work with the heavy rain.

Best bet is a good large umbrella and water-proof boots (or rubber boots)
I generally use old sneakers and hose them down with clean water later..
but not everybody could do that.