The students at the university premises in neighbouring Kancheepuram District staged protest and suddenly began pelting stones on wall-glass panels of some of the administrative building blocks and later dispersed, they said.
"We have not received any formal complaint from the management (of the university) till now," a senior district police officer said.
"They (students) are protesting over allegations of levy of fine and collection of excessive fee by the private university," the official told PTI.
Unrest among a section of students had been simmering for some time over the "fee issue" and management had held talks too, he said.
The incident comes weeks after the suicide of three girl students of a naturopathy college in Villupuram District over allegations of exorbitant fee.