my RTR(P) was issued on basis of foreign Canadian CPL & RT on 27/01/2009 and expired on 26/01/2012, but i have just recently renewed my Canadian class 1 medical hence my Canadian cpl is valid now.
Is your Canadian FRTOL valid now ? - If yes then get RTR(C) by submitting both CPL+ FRTOL of Canada and they will give you RTR(C) with validity of 5 Years ( Sorry i don't know if it's 5 or 10 years but last time it was only for 5 years of validity in 2011 ).
If you want RTR(A) then sit for both parts and clear both in same attempts to avail lifetime RTR(A).
If you have all valid flying hours and just waiting for RTR to get FRTOL / CPL from DGCA then just hurry up and fill RTR(C) application form as it takes 3 months for lazy folks at WPC to issue license.