The Delhi Police on Monday registered an FIR against unknown ABVP students based on the complaint received from a group of students in connection with a clash in JNU campus over non-vegetarian food, officials said.

This comes a day after two groups of students clashed at the Jawaharlal Nehru University's Kaveri Hostel allegedly over serving of non-vegetarian food on Ram Navami in the mess, with police saying six students were injured in the violence.