depends.
not necessarily to India since you can't really predict that India will get stuff sooner in the future, but if you have a carrier phone you may want to flash to an unbranded ROM. I did it with my 920, but beware of unintended consequences. The LTE differences in my 920's hardware and new ROM didn't cause a problem until down the road where it reared its head when Lumia Cyan was installed, soft bricking LTE. (there was a fix developed, but takes some work.)
not saying you'll run into trouble, (I didn't care for LTE and turned it off anyway, so it worked out perfectly for me) but just be careful and know what you're doing.