India is country which has a proper "monsoon season" (June - Aug) and generally when it rains it rains hard / very hard and mostly for 1-2 days minimum or more. It is not very common for rain to come once the monsoon season is over....unlike US where it keeps raining all through the year.

So you most have slipper / shoes that don't absorb water aka rain shoes. Light cotton cloths dry easily. Polyester / synthetic cloths are better because they dry faster and don’t gather mud which I common in India during rains. Umbrella is a must. Rain coats don't protect in that hard rain.

And yes, walk carefully if you see flooding there might be an open man hole, that will engulf you. If you arew careful you will enjoy India.