Hello,
The iPhone 4S Display Replacement will cost you 3000
INR.
Apple/Foxconn does not manufacture any parts separately
(even though a lot of unauthorised service centers claim to have the original parts).
There are different grades of the screen that are
manufactured in China and we make sure we source the best quality screens. Our manufacturer offers us a 1-year warranty on the parts which we pass on to the customers. We also provide onsite repair at no additional charge.