The Indira Gandhi International Airport in Delhi has moved to the second spot in the global ranking of airports handling 25-40 million passengers annually.
Incheon airport in Seoul continues to hold the numero uno position.
This was revealed in the 2011 survey done by the Airports Council International (ACI).
During 2010, Delhi airport was ranked number four in the global ACI ranking of airports handling 25-40 million passengers annually.
The airport has moved from an Airport Service Quality (ASQ) of 4.72 and sixth position across all categories in 2011.
Delhi had a rank outside the top 100 and a ASQ of 3.02 in 2007.
The ASQ assesses and benchmarks 34 service items of a passengers' on-the-day airport experience, including: navigation (flight information screens, signposting, walking distances), airport services and facilities (restaurants, shopping facilities, washrooms), security and Immigration (helpfulness of staff, waiting time at security inspection) airport environment (cleanliness, ambience) and arrivals services (speed of baggage delivery, customs inspection) among others
In 2011, over 350,000 passengers were interviewed prior to boarding their flight and asked to rate their satisfaction with the airport that day.
Passenger traffic
During the calendar year 2011, 35 million passengers passed through Delhi airport, including 10 million international passengers.
The airport also handled over 600,000 tonnes of cargo and over 300,000 aircraft movements during the year.
ACI has 580 members operating 1,650 airports in 179 countries.
During 2010, ACI handled five billion passengers and 74 million aircraft movements.