India is pretty sizable, and Starlink currently does not do any orbital routing, so you've got to be within a certain distance from a ground station so that the satellite has you and that ground station in view. I don't know what that distance is though --- maybe someone else can provide that.

If Sri Lanka also doesn't allow ground stations, that would make it pretty hard to cover southern India.

Even when there's orbital routing, there's likely capacity limits.

If Pakistan doesn't block ground stations, it may be a good solution for people in Jammu and Kashmir to get around the frequent government telecommunications shutdowns; assuming lax enforcement.