"In SAR Gilani's case, we are interrogating a few others and those involved will be arrested soon," Delhi Police Commissioner B S Bassi told reporters.
Gilani was arrested yesterday under charges of sedition, criminal conspiracy and being part of an unlawful assembly in connection with an event organised at Press Club of India here on February 10, in which a group had allegedly raised anti-India slogans.
Between Friday and Monday, the police questioned Delhi University professors Ali Javed, Nirmalangshu Mukherji and Tripta Wahi. All three of them were present with Gilani on the dais at the Press Club event.
On Monday evening, Gilani was detained for questioning and later arrested in the wee hours yesterday.
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In Gilani's case, the police had claimed to have registered the FIR taking suo motu cognisance of media clips of the incident. Police also claimed that Gilani was booked as he is presumed to be the "main organiser" of the event.
In 2001, Gilani was arrested by Delhi Police in connection with the Parliament attack case but acquitted for "need of evidence" by the Delhi High Court in October 2003, a decision upheld by the Supreme Court in August 2005, which at the same time had observed that the needle of suspicion pointed towards him.