no idea abt shed...as i said...prabir sir had highlighted once...if saraighat/BP mail is delayed, the loco is allotted once a week to this and if it runs right time to some other train...nfr is so confusing...thanks to prabir sir and his long posts, i hv deciphered it some 10%...90% yet to b deciphered...
wait for an hr...may be sguj shed...may b tkd shed...wl hv to check out...bt wdp4b is the regular one now...began with wdm3d...switched to wdp4b within a month of inauguration...