A scuffle broke out between policemen and students agitating against the Centre's reservation policy when the protestors were heading towards Congress President Sonia Gandhi's residence.
Police also resorted to firing water cannons and lobbing of tear gas shells to disperse the agitators, who tried to break the security cordon and continue to move towards Gandhi's residence.
Police was able to disperse the students, who suffered minor injuries while trying to get away from the tear gas and water cannons.
The students, who hit the streets here after a gap of almost three months to resume their anti-quota agitation a day after Cabinet decided to introduce a Bill in Parliament, wanted to submit a memorandum to Gandhi against the Centre's policy.
Students from Indraprastha University, Jawaharlal Nehru University, IIT-Delhi and from medical colleges converged at Jantar Mantar demanding immediate reversal of the Cabinet decision taken late on Monday night.
Chanting anti-Government slogans and holding the tricolour, the agitating students said they would go to any extreme to force the Government to reconsider their decision.
"Earlier, we had called off our agitation following the Supreme Court directive. The apex Court should tell the Government as well to reconsider the Cabinet decision as the matter is sub judice," Anil Sharma, spokesperson of the AIIMS Resident Doctors' Association said.
He said the medicos were considering legal experts and would move the Supreme Court against the Government decision on Wednesday.
Attacking the Government, Sharma said the medicos' agitation will continue with the same intensity as the May anti-quota protests.
"Though we have not decided to go on a strike we are keeping our options open and it would be the last resort," he said adding that students were being mobilised across the country and a national agitation could be launched soon.