At the Jantar Mantar, senior party leaders including Digvijay Singh, Jitin Prasada, Raj Babbar, Randeep Singh Surjewala, Oscar Fernandes and Selja Kumari attacked Prime Minister Narendra Modi and HRD Minister Smriti Irani over alleged "atrocities" against dalits and students and "silencing" their voice of protest in the country.
Hyderabd scholar Rohith Vemula's mother Radhika also addresed the gathering at the protest venue in Telugu.
Several members of the Youth Congress then marched towards Parliament from there before being detained at the Parliament Street.
"Rohith is not among us but he has awakened the society in slumber like Dr Ambedkar did," he said.
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Rallying behind Rahul Gandhi who has extended support to JNU students, he said, "Some people said to me that Rahul should not have gone to JNU, but why not, we ask. Injustice was done to Kanhaiya Kumar who is innocent. Now police is saying that their is no video of him raising anti-India slogans, after sending him to jail on sedition charges."
Surjewala said the Modi government in its 22-month-rule has done the "most dangerous" thing of "repressing" the voice of youth in the country and attacking the right of poor to education.
"Injustice was done to my son and like him several others died in other universities of the country and justice should be done. A government order should be issued to bar universities from discriminating against students on the basis of caste," she said, which was interpreted in Hindi afterwards.
"Prime Minister is anti-Dalit and anti-student and I will continue my struggle till I get justice for my son," she said.
Youth Congress president Amrinder Singh Barar launched a scathing attack on HRD minister Smriti Irani and questioned her for not going to Hyderabad University after Vemula committed suicide.