As per timings at bza dep 1.55 this fits on wed Also no other train runs on Sunday a slot is free

Aug 11 dep likely misprinted aug 10 is the date, also day run is mentioned as wed.Full tt of mas-shm changed Sr sending rake on wed night itself otherwise rake has to stay at mas yard for 28 hrs+ So vaccant Thursday slot may go to haldia exp if it restored if they want to run,as Thursday old slot of haldia is no more . Iam sure haldia exp slot is created by sr zonePic owner : iri member