If you're taking PSK,then keep in mind,iss train ke timings ka koi Mai Baap Nahi..waise PSK aap Allahabad/Kanpur se nahi le payenge..as officially all the Halts till KIR has been deleted,though the train stops minimum @ 100 places before KIR,including prominent places like CNB,ALD,MGS,PNBE,BJU,KGG etc..So if want to take PSK,then u've to travel Unreserved :)