The KCP chief was arrested today from east Delhi's Mayur Vihar area.
Additional Sessions Judge Reetesh Singh also sent Inugbam Sanatombi Devi, arrested along with Ranjit, to two-day police custody while allowing the agency's plea, which claimed that the accused had shifted the terror outfit's base to Delhi and were planning to carry out terror strike here.
probe agency moved separate applications seeking ten days police custody for Ranjit and two days police remand for Devi.
The police told the court that both were members of the banned terror outfit and Ranjit, who was outfit's commander- in-chief, was to be taken to Manipur to unearth the larger conspiracy.
Devi was a cadre and her custodial interrogation was required in the case, the police said, adding that both were required in several cases in Manipur and were apprehended in the capital following a tip-off.
They also submitted some of their associates were recently arrested in Manipur and handgranade and other arms and ammunitions were recovered from them.