"UPSC has already issued admit cards. In the next three days, the situation will become worrisome. The government cannot walk on two separate paths," JD(U) president Sharad Yadav said, adding that the admit cards should be revoked until the three-member committee submits its report on the issue and a decision is taken.
Congress said the government should show seriousness about resolving the issue and added that the party is ready to take up the fight on behalf of UPSC aspirants both inside Parliament and outside.
Aam Aadmi Party, too, said that it backs the demands of the protesting students.
AAP leader Arvind Kejriwal charged that the "Centre kept sleeping on the UPSC issue and allowed the situation to get out of control".
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"Police should stop beating the protesting UPSC students. Their demands are genuine. AAP supports their demands," Kejriwal said in a tweet.
"This issue has been raised before in both Houses of Parliament. The Centre has said it will seek a solution, but until now, no solution has been sought and our party strongly disapproves of it," said BSP supremo Mayawati.
BJP, meanwhile, hit back at Congress for its criticism.
"The (three-member) committee was formed by the previous UPA government. Now that they (Congress) are in the opposition, they are blaming us for the mess. In fact, we are trying to find a solution to this," said the Minister of State in the PMO, Jitendra Singh.
Protests have intensified after Union Public Service Commission (UPSC) issued admit cards yesterday for the preliminary entrance exam scheduled for August 24.