I am no expert, but I was in India last summer and there was a severe Malaria outbreak in Mumbai in July because of the heavy monsoon rains.
Before I left on my 2 month long trip, my doctor highly suggested that I take anti-malaria pills.
I think you should take them just to be safe.
There are some anti-malarial pills that have some pretty harsh side effects (depression, suicidal tendencies, etc), but there are some that are a little more expensive but don't have those scary side effects. I took Malarone, which is in the more expensive, no side effect bucket.