Holding placards, the students from the "No Jobs, No Votes" online campaign, swarmed the BJP head office raising slogans "We want justice."
Some protesters threatened to drink phenyl they had brought with them but the police seized the bottles and whisked them away, police said.
The campaign that demands youth employment is backed by voluntary organisations, according to a protester.
However, the BJP termed the protest as a handiwork of the Congress to "defame" the party in the coming assembly polls.
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