@ John Boy
i am not sure about the information in annexture, i am talking it as per the personal experience, 2 of my friends got the rejection letter from WPC stating that 30 hours outside of india ( not on VT Registered Aircraft) can not be counted so they will have to appear for the part-1 exam to renew it.
and as far as RTR(C) and RTR(P) goes, RTR(C) was issued only after clearing part-1 so it gets eliminated, and RTR(P) was issued because of several other practical reasons, which is not the case with today.