Kolkata, July 20 -- Five more suspected assailants involved in the brazen killing of gangster Chandan Mishra inside a Patna hospital were arrested from a multi-story guest house at Anandapur in Kolkata's southern fringe area following a joint raid conducted by the state STF and its counterpart in Bihar, official sources said today.

Sources indicated that among those arrested, Tauseef Raja, also known as Badsha, is believed to be the mastermind behind the murder that occurred on July 17 at Paras Hospital. His injured cousin, Neeshu Khan, along with a shooter, has also been taken into custody by the STF for intensive interrogation.

Two others detained were a male nurse and a woman during the raid last evening in the guest house by a comman...