The Jammu and Kashmir Police had Saturday handed him over the Mumbai Police for further questioning in the case of Khan's mysterious disappearance. Tak will be produced in a metropolitan court here Monday.
Police had on Saturday got the permission from a court in Jammu to bring Tak to Mumbai.
Tak, a native of Kishtwar town, about 230 km northeast of Jammu, was arrested June 21 after Khan's vehicle was found in the town.
During interrogation, Tak made the revelation that Khan, missing since February 2011, had been killed along with four other members of her family and their bodies had been disposed of somewhere near Mumbai.
A case of kidnapping has been registered at Mumbai's Oshiwara police station by her her father Nadir Patel. According to the complaint, Tak and his accomplice Asif Sheikh had allegedly kidnapped Khan and her family members.
Khan, whose original name is Reshma Patel, was last seen in a 2008 movie "Wafaa" with Rajesh Khanna.