I can not say anything. You should go for MP inquiry or should apply AITP/GCMS Notes. Time 17 months is calculated... when application file reaches CHC New Delhi embassy/visa office onwards (not the date when application filed at CIC Mississauga, Canada). It's clearly mentioned on CIC website. e.g. my application file was reached at CHC New Delhi on 7 April, 2015 and my 17 months will be completed on 6th or 7th August 2016.
Ok but in my case my file rech delhi in feb but on line status shows process started from march 17 so 17 months starts from that and what is dm and travl checq