New Delhi's Indira Gandhi International Airport (IGI) has retained its number one position in the world for the second consecutive year in 25-40 Million Passengers Per Annum (MPPA) categories. Airports Council International (ACI) on Monday released new rankings for 2015 Airport Service Quality (ASQ) Awards.

The parameters based on which the IGI Airport bagged the award include improved on-time performance of airlines impacting passenger experience positively, launch of interactive and user-friendly mobile app - flyDEL, improvement of ambiance and signages, strong bonding with stakeholders among others. It was also appreciated for upgradation of shopping and eating facilities at the airport. Emphasis was also laid on sanitation.

Operated by the Delhi International Airport Limited (DIAL), the IGI Airport also stands ahead of all other Indian airports by winning maximum number of awards in 2015. The IGI Airport has also been conferred with two more prestigious awards The Best Airport by Size & Region Asia Pacific (25 - 40 MPPA), second Best Airport by Region Asia Pacific. In 2011, the airport had achieved the position of world's number two, which it retained for three consecutive years till 2013.

The airport is also served by six domestic and 57 foreign carriers. According to airport officials, the IGI Airport handles 78 air traffic movements (ATM) per hour, the highest in India.

DIAL CEO, I Prabhakar Rao said, "These achievements reiterate the commitment towards fulfilling Prime Minister Narendra Modi's Make in India mission and also act as a constant catalyst to create a new paradigm of passenger experience."

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