The incident occurred last night when a bus coming from opposite direction rammed into the tractor-trolly, police said today.
The victims were identified as Ramlakhan (25), Monu (12), Golu (10), Bauri (8) and Vimlesh (18). Two others have not be identified as yet.
All those killed were in tractor trolley, they said.
The injured were rushed to hospital, where their condition was stated to be stable.