What is the policy of Govt. of India on airport infrastructures?

As per the Govt. of India's Policy on Airport Infrastructures issued in December, 1999, no Greenfield airport will normally be allowed within a distance of 150 kms from the nearest existing airport. Where the Govt. decides to set up a new airport at such place through AAI on social economic consideration, even through the same is not economically viable, suitable grant-in-aid will be provided to AAI to cover both the initial capital cost as well as recurring losses.