Apparently you can renew the RTR A license ( for those who had passed part 1 and part 2 but only got 5 year validity ) with just 30 hours of flying irrespective of the number of years it has been since you flew
This is because the last circular that they came out with does not mention the 3 years date
http://www.wpc.dot.gov.in/DocFiles/copcircular1.jpg
The only problem is depending on RLO you visit some of them ask for a verification letter from the DGCA saying the 30 hours are true . Apparently the letter from the flight school is not enough
The problem is the DGCA will not / does not have the authority to issue such a certificate
You have to get the WPC to send a written request to the DGCA DTL Section ( mentioning your file number ) and the DGCA has to respond saying no such letter can be issued