India, May 9 -- Starting May 16, flying out of Mumbai will cost more, with the revised User Development Fee (UDF) approved by the Airports Economic Regulatory Authority of India (AERA). A UDF is a fee levied on passengers to fund the development, maintenance and modernisation of airport infrastructure.

According to the revised UDF, departing domestic passengers will have to pay Rs.175 each, a nominal increase of Rs.55. This section of travellers comprises 75% of the total passenger air traffic at Chhatrapati Shivaji Maharaj International Airport.

The revised UDF for international passengers has been rationalised with a differential rate for economy and business-class travellers. Departing international passengers in economy class will p...