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The letter, delivered by an unidentified person to Ambani's personal staff in a sealed envelope at his Maker Chambers office on February 24, also said IM would damage his 27-storey mansion ‘Antilia’ on Altamount Road, a police officer said on condition of anonymity.
The handwritten letter, claimed to have been penned by an IM operative, said the organisation wanted the release of its operative, Danish. If he was not set free, the home-grown terror group would cause harm to Ambani.
Police suspect the letter referred to Mohammed Danish Ansari, a native of Darbhanga in Bihar, arrested in January by the National Investigation Agency for sheltering the Bhatkal brothers before they reportedly escaped to Pakistan three years earlier.
After receiving the letter, a senior officer of RIL met city Police Commissioner Satyapal Singh to apprise him of the development, the officer said.
Police would ask for CCTV footage from the security staff of Ambani’s office to find out whether any images of the person who had delivered the letter, were captured.
When contacted, a spokesman for RIL refused to comment, as the matter was under investigation.
