Will the internet on my iphone work in India?

I live in the US and have a new iPhone 5c. I also have unlimited data with tmobile. I'm going to India soon and was wondering if my data on my phone will work there too. I won't call because I know that will cost a lot, I just want to use the internet

The internet (3G) would work (costing a fortune).so you should switch off data-roaming while abroad.
but wireless will work in hotels, cafes… Like at home! There you have access to all your cloud data for free!

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