One of the victims was identified as Sukhvir Sharma (35) with the help of Aadhaar card found in his pocket, police said adding the two others are still unidentified.
The three died on the spot, they said.
Efforts were on to ascertain the identity of the rest two victims, police said, adding that private bus driver fled the scene soon after the incident.
The bodies have been sent for post-mortem examination, they added.
