Affirm...
Indian RTR (A) which is valid for 5yrs can be renewed by either option 1 or 2 or 3...
I had cleared RTR(A) examination (part 1 and 2 both) back in 2008. The license is valid for 5yrs.
I enquired about the renewal procedure... and they gave me this answer
I'm not sure whether the same rule is applicable for RTR(P) i.e. convert via foreign FRTOL
cheers!!
airtransporter