Slot change nahi kar sakte jyada.. maintenance DHN me hota hai iske rake ka..
ye rake RNC pahunch ke DHN aata hai ICE bankar.. agar slot change kiya gaya DUMK extension ke karan to RNC DHN ka slot change karna hoga. Ek DUMK extension ke karan 2 trains ka slot change nahin kiya jaa sakta hai jabki Dumka se already same destination ki overnight train hai hi..