The document summarizes key information about Indira Gandhi International Airport in New Delhi: 1. The airport was developed through a public-private partnership between the Airports Authority of India, GMR Group, Fraport AG, and Malaysia Airports Holdings Berhad at a cost of INR 128.5 billion. 2. Operation and maintenance is managed by Delhi International Airport Limited under a 30+30 year concession agreement. 3. Phase 1 involved construction of a new runway and domestic terminal, while Phase 2 added a modern integrated passenger Terminal 3.