The police gave this information to a magistrate in Borivali when three of the arrested accused -- Vijay Rajbhar, Pradeep Rajbhar and Azad Rajbhar -- were produced in the court, which extended till December 22 the police remand of the trio.
They informed the court that the tempo, which was used in transporting the victims' bodies, and Bhambhani's car have been recovered and would be examined.
The investigating officer also told the court a ring worn by Hema (43) at the time of murder has been recovered and the charge of robbery has been added in the FIR.
Besides the trio, Shivkumar Rajbhar alias 'Sadhu' has been arrested from Varanasi and is also being interrogated by the police. His custody ends on Tuesday.
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Hema's husband Chintan Upadhyay has been questioned by the Crime Branch.
Hema, a Baroda-born installation artist, was locked in bitter divorce proceedings with Chintan, a contemporary artist. She had in 2013 filed a case against him alleging that he painted obscene pictures of women on the walls of their matrimonial home in Mumbai to harass her. 65-year-old Bhambhani had represented Hema in this case.
The police had said Vijay Rajbhar had transported the bodies in a tempo from the warehouse of Vidyadhar in Kandivali (W) to a drain in Kandivali.
According to the police, Vidyadhar had called Hema to his workshop in Laljipada on Saturday afternoon under the pretext of sharing some evidence, apparently in connection with the marital discord case against her estranged husband Chintan.
Vidyadhar had incurred a huge loss in his glass fabrication business and was deep in debt, they have said.
Hema and Bhambhani visited Vidhyadhar at his shop cum warehouse on Saturday around 8:30 PM. There the trio had a heated argument following which Vidayadhar, with the help of other accused, killed the artist and the lawyer, the police have said.