Over 20 people, including security personnel and mediamen, were injured when students agitating over creation of a separate Telangana hurled stones at them on the Osmania University campus here, prompting police to use force to quell them.

Security personnel used batons, fired rubber bullets and tear gas shells when students defied prohibitory orders and tried to take out a procession last evening in support of legislators who resigned to protest the terms of reference of the Sri Krishna Committee to go into the issue of separate statehood, Commissioner of Police AK Khan said.