Pilot tested positive for a psychoactive substance after the August 4 incident, but AAIB found no link between the drug use and the aircraft's hydraulic failure.
In an official statement, Ahmedabad police said that around 3.40 pm, the Operations Control Centre was alerted that an Air India Express flight was being diverted to Ahmedabad airport.
The funding request had triggered concerns in Singapore, with Member of Parliament Kenneth Tiong Boon Kiat questioning whether SIA should provide more funds to the Indian carrier.