The National Investigation Agency (NIA) took arrested Mumbai Police official Sachin Vaze to the Mithi River near Bandra-Kurla Complex to search for evidence on Sunday, according to news agency ANI. After Vaze directed divers to several spots, they recovered two CPUs of computers, the number plate of a vehicle, two DVRs, and a laptop among other things. The National Investigation Agency (NIA) has also recorded the statement of a hotelier, who told the probe agency that he saw Thane businessman Mansukh Hiren on March 3 when he went to handover the 'hafta' (weekly) collection to Mumbai Police cop Sachin Vaze at his CIU office. In his statement to NIA, the hotelier said he had seen Mansukh Hiren, arrested constable Vinayak Shinde and some policemen in a meeting. The NIA is likely to question the policemen as to what they were doing in the CIU office as they are attached to another unit.
Maharashtra ATS believes that the plan to kill Mansukh Hiren was hatched between March 2-3 at the CIU office situated at the Mumbai Police headquarters. The hotelier, in his statement, said that the meeting happened behind closed doors between 4:30 pm to 6:30 pm on March 3. Mansukh Hiren was looking disturbed and was murmuring to himself about an "unreasonable demand" when he had done nothing wrong, the hotelier said. The NIA believes that Sachin Vaze was trying to convince Mansukh Hiren to take responsibility for the Ambani bomb scare case for which he was not ready. A constable has corroborated the hotelier's claim that Mansukh Hiren was not ready to accept the blame for the sensational case. Now, the agencies are looking for all the suspects involved in the killing of Mansukh Hiren.
On February 25, 2021, an abandoned vehicle - Scorpio -, that contained 20 sticks of the explosive gelatin, was found parked near the residence of Mukesh Ambani. The Scorpio which was found with the explosives belonged to Mansukh Hiren, a Thane-based business. Mansukh Hiren had claimed that his car was stolen on February 17. Later, Hiren's body was fished out of Mumbra creek in Thane on March 5.