The police have also referred the case to NIA considering the national security aspect involved.
The aircraft carrier, built at a cost of around Rs 23,000 crore, set sail on August 4 for the crucial sea trials ahead of its planned induction into the Indian Navy by August next year.
In a statement to the media after reviewing the progress made in the construction of the IAC, Singh described it as India's pride and a shining example of Atmanirbhar Bharat.
Sea trials were expected to be completed early this year but Covid restrictions led to delay in various activities which could have been completed during this period, a source said.
Basin trials are conducted for proving of the propulsion, transmission and shafting systems which can be tested only out of waters.