The incident took place in Rijor Kotwali area yesterday when an argument broke out between Umesh and Mahendra following which heated words were exchanged among the groups led by them, they said.
Mahendra and others then shot at the other group, injuring Umesh, Moolchand and Jawahar Singh.
The injured persons were admitted to a hospital, police said, adding, an FIR has been lodged in this connection.
Police said search is on to arrest the accused.