28-year-old Mohsin Ibrahim Sayyed, who was arrested by the Special Cell of Delhi Police yesterday, was produced before Additional Sessions Judge Reetesh Singh and the probe agency sought his custodial interrogation in connection with busting of the alleged ISIS module.
The police told the court that Sayyed was required to be quizzed to unearth the entire module and to ascertain the identities of other persons associated with it.
Advocate Akram Khan, who appeared for Sayyed, opposed the plea saying his client has been falsely implicated.
The police had last month arrested four persons with suspected ISIS links from Manglour in Uttarakhand and claimed to have unearthed a terror plot to target the Ardh Kumbh Mela at Haridwar, especially the trains headed there, along with some strategic locations in the national capital.
The suspects were identified as Akhlaq ur-Rehman, Mohammed Osama, Mohammed Azim Shah and Mehroz.
According to police, Sayyed, who is believed to be self- radicalised, was acting as a financier and had given Rs 50,000 to the four persons who were arrested earlier.
All of them were found to have links with a former Indian Mujahideen (IM) terrorist who later went to fight for ISIS, the police said.
"The arrested persons were allegedly in contact with a former IM operative, who later went for training in Syria and is presently believed to be a key member of Ansar-ut Tawhid fi Bilad al-Hind (AuT) which has pledged allegiance to Islamic State of Iraq and Syria (ISIS)," the police said.