Going forward there are three ways for you:
1. Get Canadian CPL renewed by applying for renewal of ADB. Canadian RT is valid for life irrespective of class-I. Medical not required for renewal of license as well. Once you have your renewed Canadian CPL apply for RTR(P) based on your Canadian RT.
2. Appear for the next RTR exam and attempt paper-I only. Based on this paper and Canadian RT apply for RTR (C); validity 20 years.
3. in the coming attempt clear both Paper-I and Paper-II and get a lifetimes RTR(A).
Once you get RTR(P)/RTR(C)/RTR(A) get your FRTOL renewed.
With your FRTOL renewed go do recency checks, and submit application for CPL renewal
As far as I know for Indian CPL expired for period less than a year you just need to do recency day and night checks. The flying club will add a fam flight from their end.
For license expired more than a year till 3 years you need to give Air Regs again. Might as well sit for them as well just in case your process goes beyond May'16.