"The four youths, of which some are believed to be students of a central university, were identified by Gilani during interrogation. The youths raised anti-India slogans at the event," a police official said, adding that several teams are trying to locate them.
The police are keeping track on their social network profiles and monitoring CCTV grabs of the February 10 event organised at the Press Club of India here, the official said.
At the Press Club event on February 10, in which Gilani was present, a group had allegedly raised slogans hailing Parliament attack convict Afzal Guru.
The next day, the police registered a case of sedition, criminal conspiracy and unlawful assembly against Gilani and other unnamed persons taking suo motu cognizance of video clips they had obtained from a news channel.
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Gilani was detained for questioning on Monday evening and later arrested in the wee hours of Tuesday. He was produced before a court today which sent him to 14-day judicial custody.
Request for booking a hall at the Press Club was done through his e-mail and the nature of the event was proposed to be a public meeting, which did not turn out to be so, senior officials had said.
DU professor Ali Javed, under whose membership the hall was booked, was questioned by Delhi Police for two consecutive days. The police also questioned DU professors Nirmalangshu Mukherji and Tripta Wahi. All three of them were present with Gilani on the dais set up for the event, police said.