Investigators have also found that he had conducted a proper reconnaissance of Bhaba Atomic Research Centre also.
According to official sources, David Headley, had travelled to Chembur and Trombay many a times and filmed the exits and entries of the BARC besides the entry of employees.
The terror suspect had taken video shots of the nuclear installation by hiring a boat from Gateway of India.
The security around the nuclear installation has been tightened and efforts were on to ensure proper cover in the mangroves located below the BARC, the sources said.
The investigators were trying to ascertain whether he had met any other Bollywood actor other than Rahul Bhatt, son of noted filmmaker Mahesh Bhatt.