Besides, the ministry might ask the promoters to pay 4 per cent of the revenue collected to the Airports Authority of India (AAI), senior ministry officials said.
However, the final decision on the financial parameters and the tariff regime will be taken by an empowered committee set up by the Cabinet.
The ministry was also planning to adopt the joint venture route for 20 airports across the country, including Kolkata and Chennai, the sources said.
The annual fee and a revenue share, the ministry feels, will help the AAI to tide over any financial difficulty it may face resulting from the privatisation of the two metro airports as these two together account for nearly 60 per cent of the AAI
