Another student was also suspended from the hostel for one year, BESU vice-chancellor Ajay Ray told a press conference here.
All the students were of the Metallurgical Department.
The decision was taken after the recommendations of a committee headed by Prof Aditya Banerjee, set up to probe a charge of ragging, he said.
A first year student of the Metallurgical department was ragged by some second year students on August 22 last.
The senior students took the first year student to their hostel on the evening of August 22 and had ragged him, the VC said.