"We have ascertained the identities of around 22 persons who were present in the crowd raising seditious slogans. We are likely to question them in the coming days," a police source, said adding that further details about the identified persons are yet to be verified.
He further said the police have so far been unable to identify four persons who had covered their faces with mufflers -- all believed to be outsiders -- who were spotted allegedly raising anti-national slogans at the event.
Meanwhile, the police have started preparing the evidence file of the case.
The file includes the raw version of the video clip obtained from a news channel on the basis of which the case was registered, the letters of communication between the police and the University authorities and the poster of the event, which the police claim will help prove criminal conspiracy in connection with the matter, the source said.
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Kumar was today sent back to Tihar jail by a Delhi Court on completion of a day's police remand which was sought to interrogate him with Khalid and Bhattacharya.
The court had yesterday sent Kumar to one day police custody after the prosecution said that he was needed to be confronted with Khalid and Bhattacharya in view of discrepancies in their statements regarding the controversial JNU event.
All three of them were interrogated together for the first time at R K Puram police station, from where Kumar was taken away for Tihar around 4.20 PM.
The police source claimed that Kumar has so far maintained that on February 9, he came out of his room only when he got to know about a possible confrontation between two groups over the event inside the campus and has dissociated himself with the event.
While Khalid has so far denied having indulged in any anti-national sloganeering, Bhattacharya challenged claims that the slogans mentioned by police were anti-national in nature.
All three of them were arrested in a case of sedition and criminal conspiracy registered over the controversial JNU event against the hanging of Parliament attack convict Afzal Guru, in which anti-national slogans were allegedly raised.
