India uses both two and a three round pin plugs and the power supply is 220-240v. Three pin plugs are common in hotels, but if you are travelling extensively in India, you may come across some power points that will only take the two pin variety.
We recommend you bring an adaptor along with you. There are lots of adaptors available, and with the number of electronic devices we carry these days, one with multiple USB connections is a great idea and the most compact option. You can also get one that comes with several plugs so that you can change it from a two pin to a three pin if needed.
We suggest check your local travel supply store.