New Delhi, Dec 15 : After a Delhi court sent the alleged mastermind in the Parliament security breach case, Lalit Jha, to seven-day police custody on Friday, the sixth accused, Mahesh Kumawat, was also sent to police custody for a week on Saturday.

Special Judge Hardeep Kaur remanded Jha in Delhi police's custody on an application moved by the prosecution, which said he was required to be questioned to unearth the entire conspiracy.

“He disclosed how he is the mastermind of the entire conspiracy... He is required to unearth the entire conspiracy and the modus operandi,” the public prosecutor told the court while seeking his remand for 15 days.

Police also said he needed to be questioned about a phone he was using and has not been traced yet.

Jha, accompanied by a man, turned himself in at the Kartavya Path police station in the national capital last evening where he was arrested before being handed over to the Special Cell, the specialised counter terror unit of the city police.

Police claimed Jha has admitted that the accused met many times to hatch a conspiracy to breach Parliament security.

"Jha disclosed that they wanted to create anarchy in the country so that they can compel the government to meet their demands. He took the phones (of other accused) to hide them and to destroy evidence as part of the larger conspiracy. He disclosed that he threw his phone away on way from Jaipur to Delhi," police told the court.

Police said Jha's custodial interrogation was required for "in depth investigation to unearth the larger conspiracy behind the attack, involvement of other persons and to find the actual motive behind the attack".

Besides, he was also required to be interrogated to ascertain whether the accused had association with any enemy country or terrorist organisation, police said.