The hearing was conducted through video conference as Gilani was not produced before the court due to the security reasons.
Gilani, who was arrested on February 16 in connection with an event at the Press Club of India here where anti-national slogans were allegedly raised, was earlier sent to judicial custody on February 18.
Police had earlier told the court that an event was held on February 10 in which banners were placed showing Afzal Guru and Maqbool Bhat as martyrs and anti-national slogans along with slogans demanding independence for Kashmir were raised.
Gilani's counsel, however, had said he was only the convenor and the event was open for all.
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Gilani's arrest has come amid the raging row over the arrest of JNU Students' Union President Kanhaiya Kumar over sedition charges in connection with an event on February 9 at the varsity campus to commemorate the hanging of Guru.
At the Press Club event, a group had allegedly shouted slogans hailing Guru, following which the police had lodged a case under sections 124A (sedition), 120B(criminal conspiracy) and 149 (unlawful assembly) of the IPC against Gilani and other unnamed persons.
Following registration of the FIR, the police questioned for two consecutive days DU professor Javed, a Press Club member who had booked the hall for the event.
Gilani was arrested in connection with the 2001 Parliament attack case but was acquitted for "need of evidence" by the Delhi High Court in October 2003, a decision upheld by the Supreme Court in August 2005.