@ Ashok Sharma
There are two ways in which you can et a foreign RT converted
1. RTR (P)
For this license you will need to hold the foreign RT and the a CPL from the same country as well .
For the RTR P you do not need to give any exams in India . You can apply for conversion directly
But since you dont have an Indian CPL to convert to a foreign country's CPL this option would be out of the question for you
2. RTR (C)
For this license all you need is a Foreign RT license .
You can go to any country that is a commonwealth country or the philippines . Once you obtain the license you will need to pass part 1 only