Qasmi was produced before District Judge Amar Nath during in-camera proceedings and according to sources, the NIA sought his custodial interrogation for unearthing the entire conspiracy.
A resident of Selampur here, Qasmi was arrested yesterday by NIA during a joint operation with the Uttar Pradesh ATS.
The sources said that NIA told the court that Qasmi was allegedly delivering provocative and inflammatory speeches and was motivating the youths to commit terror strikes across the country.
The probe agency has claimed that the accused were involved in recruiting and financing persons willing to join the so called "Caliphate" of ISIS.
It had also said that they were found to be in communication with some active members through chatting applications 'Signal', 'Trillion' and 'Skype' in order to motivate them to join ISIS in furtherance of activities of its ideologies, thereby luring youths to join this proscribed terrorist organisation.
The agency had said that laptops, external hard disks, mobile phones and SIM cards which were recovered from the possession of these accused have been sent for forensic examination and the results are awaited.