Pact signed for handing over of capital airport Updated: Updated: Despite opposition from State government and petitions in Supreme Court Share Article Despite opposition from State government and petitions in Supreme Court Despite opposition from the State and cases in the Supreme Court, the Airports Authority of India on Tuesday signed concession agreements with Adani Airports Ltd for operations, management and development of the Thiruvananthapuram international airport via PPP mode for 50 years. In New Delhi, the agreements were exchanged between N.V. Subbarayudu, ED (SIU), Airports Authority of India, and Behnad Zandi, CEO, Adani Airports. The concession agreements of Jaipur and Guwahati airports were signed and exchanged.