The incident happened yesterday when two senior students- Rajendra and Raj Kumar had allegedly beaten up their juniors during ragging, said Harish Vardhan Singh, SHO, Govind Nagar.
Angered over the incident, four junior students - Ved Prakash, Yashpal, Amit, and one unidentified - went to the seniors' room at Jaysinghpura in the evening, the SHO said.
Scuffle ensued and Ved Prakash fired at Rajendar with a country-made pistol injuring him in his thigh, he added.
Ved Prakash, Yashpal and Amit were arrested in this connection and efforts are on to nab the unidentified accused, they said.