Former Air Works employees were questioned by police on Sunday in connection with pebbles found in the helicopter of industrialist Anil Ambani and a police team was sent to meet the family of technician Bharat Borge whose body was found from a railway track.
"We have been questioning former Air Works employees in connection with the pebbles found in the fuel tank of the helicopter," a senior Crime Branch official said.
Six former employees had been questioned on Saturday and eight on Sunday, the official said, refusing to comment on the results of the interrogations.
Police are probing the possibility that former employees could have been involved in instigating an employee into putting the pebbles into the fuel tank of the helicopter.
Crime Branch officials have recorded the statements of close to 60 persons so far, the official said.
Police are also awaiting the results of the forensic tests.
A senior Government Railway Police official today said a team had been sent to Satara to question deceased technician Borge's family. Borge, who was working with Air Works, had first spotted the pebbles in the tank.
He was later found dead on railway tracks near suburban Vile Parle station on April 28.
"A team has been sent to speak to his family members like his wife and others to see what he had told them prior to his death," GRP ACP P Sawant told PTI.