I'm also going to South India for two weeks in September and am curious if anyone has any thoughts on the following itinerary:
Chennai (1 night) -> Kochi (1 night) -> Munnar (3 nights) -> back to Kochi and catch a flight to VTZ (wedding and ostensibly the raison d'etre for the trip) (3-4 nights in VTZ) -> HYD (3 nights) -> back to MAA to fly out