Metropolitan Magistrate Sheetal Chaudhary sent Ramesh Kakkar, owner of 'The Connaught' hotel and two others - Amir Alvi and Anwar Omais, who were produced in the court today, to Tihar Jail till June 2.
The court had yesterday sent four other accused - Saleem Khan, Ram Phool, Bilal and Israil to jail for 14 days after the police did not seek their custody.
According to the police, the civic body had last year sealed the property leased by NDMC, on which 'The Connaught' was functioning, after the hotel authorities failed to abide by the eviction order following expiry of the lease.
The police had claimed that apprehending an unfavourable order, which would have resulted in huge monetary loss and eviction from the property, Kakkar had hatched a conspiracy to eliminate Khan, who was made the Estate Officer by High Court and was to pass an order in the lease matter on May 17.
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Police had claimed that Kakkar (48) had contacted Ram Phool (46), his body guard, and one Israil (31). Both of them were bouncers at Kakkar's nightclub in Greater Kailash area, which was closed down around five years ago.
It had alleged that other arrested accused were roped in in the conspiracy to eliminate Khan.
During investigation, it has emerged that the property on which hotel The Connaught is functioning was taken on lease for setting up a 2-star youth hostel but the plan was changed and a hotel came up instead, attracting action from the civic body.