If I buy an locked Iphone 4s from USA. Can I unlock it in India?

Will there be a problem after I unlock the Iphone 4s in India?

You can unlock an iphone from anywhere in the world if it's not a stolen one.
1.go to ebay and find a seller who unlocks iphones of the network your phone's on. (there are many sellers for any network)
2.pay him the fee via paypal.
3. He will tell you how many days it will take, but not more than a week.
4. When he says okay, put the new sim and connect your phone to itunes. (you should be online)
5. You have nothing else to do. Your phone is unlocked!

or

you can put a rebel sim with your sim.rebel sim (rsim) is a very thin circuit paper which you have to place between the sim and the phone. And your phone is unlocked. But of you take it away it's locked.

or

there will be shops which unlock iphones and you will be able to get it done i'm sure. Not been to india though, but heard you can.

i recommend the first solution.i've done this many times and it's 100% legal and genuine.
the carrier will never say yes because they never want you to buy the phone and leave the network. And those who work there are just salesmen no techies.
just check on ebay to make sure.

Yes you can easily unlock your iphone4s in india. First you can visit this site http://www.theunlockspot.com/apple-iphone-4s/rs16wp9/ here you can get the remote unlocking service and unlock your iphone4s permanently. This is the permanent unlocking service so there's no problem occur after you unlock your iphone4s