its not that all the applicants go through BC.
it depends on your file complexity and random file checks.
obviously the ones who have received MR,PPR without any intimation of BC through their employees would have been skipped by their VO's for BC due to their file being straight forward. Also, in rare cases there is a possibily of BC after MR just as they ask for bank statements even sent during initial stage. Anyways, it completely depend upon them on what order they follow. Currently VO's are clearing(DM & Visa's) all their backlogs. DM's and Visa rain can start anytime at NDVO. Fasten your seatbelts guys!!!!!! Best of luck to all & God bless us.