Shah was produced before Additional Sessions Judge Reetesh Singh after expiry of his police custody and the Special Cell of Delhi Police sought extension of his remand saying he was required to be interrogated further to ascertain the identity of his other associates.
The police told the court that Shah was to be quizzed to unearth the entire conspiracy as well as funding of the terror outfit.
The court after hearing the arguments said that sufficient grounds were mentioned in the application of the police seeking extension of Shah's remand.
Besides Shah, four other accused-- Mohammed Asif, Abdul Sami, Zafar Masood and Mulana Mohd Abdul Rehman Kasmi-- have been arrested in connection with the case.
More From This Section
Police had earlier said that Rahman ran a madrassa in Uttar Pradesh where several students were enrolled and he was allegedly trying to radicalise them for terror activities.
While Asif (41), was held from Seelampur in north-east Delhi, Rahman (37) was arrested from Jagatpur area of Cuttack in Odisha, police had said. They have been booked under provisions of the Unlawful Activities (Prevention) Act.
According to special cell, Rahman is suspected to have international links in countries like Saudi Arabia, Pakistan and Dubai.