The Airports Authority of India (AAI) is expected to lease out six more airports, including the Biju Patnaik International Airport under the public private partnership (PPP) model. The AAI had recommended leasing out BPIA, Amritsar, Varanasi, Indore, Raipur and Tiruchirappalli airports for operation, management and development under PPP.Contact: KP Kailas Nadh, General Manager, Airports Authority of India.Address: Rajiv Gandhi Bhawan, Safdarjung Airport, New Delhi-110 003.Tel: 011-2463 2950. E-mail: nadh@AAI.AERO Website: www.aai.aero