Mumbai: Maharashtra Anti-Terrorism Squad, probing the death of Mansukh Hiren, has recorded statements of 25 people said an official on Friday.
The ATS on Wednesday also confirmed that the diatom test report of the deceased businessman has returned positive.
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"Diatom test done at GMC is positive. However, ATS is sending the report to the forensic science lab (FSL) Madhuban, Haryana for confirmation. Meanwhile, the ATS is investigating the case as murder only," said ATS officials.
Diatom test is an important tool in the diagnosis of death in drowning cases.
Hiren, the owner of the vehicle that was found containing explosives outside the house of Reliance Industries Chairman Mukesh Ambani, was found dead on March 5 in Thane.