A group of KSA members first gathered at the gate and demanded to meet BJP leaders but when they were told that none was present they went on the rampage, damaged furniture in the office and broke the glass panes of its windows, BJP sources said.
The students left the place shouting slogans and the police was called in by BJP workers.
Earlier, KSA members had reprotedly tried to storm the Congress Bhavan here but women office bearers of the party managed to handle the situation by placating the agitating students.
Police said investigation into the incident was on but none were arrested.
Polling for the 60-seat Manipur assembly would be held on March 4 and March 8.