Passengers flying out of the city should reach the Mumbai airport earlier than usual to avoid missing their flights as security has been beefed up at the airport following Wednesday's bomb blast outside the Delhi high court.
The bomb blast killed 11 people and injured 76 in Delhi.
The airport's Facebook page also urged passengers to cooperate with the airport staff as security checks have been increased.
"We have increased the number of security personnel at the all entry points so that most passengers can be frisked before entering the terminal," said a senior official with the Central Industrial Security Force (CISF) that guards the airport, on condition of anonymity as he is not authorised to speak to the media.
With manpower increased at the CISF watch booths, 100 metres before vehicles entering the airport premises approach the terminals, they are checked thoroughly.
Last month, Mumbai airport became the first in the country to deploy X-ray scanners and explosive detecting devices at entry points.
"We have been getting too many terror alerts lately. As a result we are not taking any chances," added the CISF official.
The Bureau of Civil Aviation Security had issued an alert soon after the serial blasts in the city on July 13, warning that the terrorists could hide explosives in perfume bottles and use these to attack the airport.