An IndiGo plane flying from Kannur to Doha was diverted to the airport on Friday due to a technical issue.
The airline said the flight 6E-1715 was diverted to Mumbai as a precaution.
"The operating crew noticed a technical issue and diverted the aircraft to Mumbai for necessary maintenance. The passengers are being accommodated on an alternative aircraft for their onward journey," it said in a statement.
According to a senior DGCA official, the aircraft was diverted due to a hydraulic leak.
Kannur is in Kerala.
Details about the number of passengers onboard the aircraft was not immediately available.
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