Unable to connect to 3G network on Airtel?

I am traveling in India and even though I got a 3G data plan, I was unable to use the 3G network no matter what I tried.

Turns out in my area, Airtel does not provide 3G service, but Idea provides 3G service for Airtel. So, I had to manually select IDEA from my carrier list and then it showed up as Airtel network with 3G.

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