Additional Sessions Judge Reetesh Singh allowed the prosecution's plea and sent the accused persons -- Mohd Sajid, Shakir and Sameer -- for further jail term till July 5 after they were produced before the court from their judicial custody.
The court had earlier sent the accused to custody on the police plea that their custodial interrogation was required to crack their Delhi module.
Delhi Police had detained around 10 more persons suspected to be linked with a terror outfit planning an attack in the city and allegedly recovered explosives from their possession after a series of overnight raids in the national capital and neighbouring states.
Special Cell teams had conducted raids in Delhi and UP in a joint operation of Delhi Police and a central intelligence agency.
All the three accused were suspected to be members of a sleeper unit of a terror outfit, planning an attack in the national capital and other cities, police said.