India's Indira Gandhi International Airport (IGIA) emerged as the ninth busiest airport in the world in 2022, with passenger traffic of more than 5.94 crore, Airports Council International (ACI) said on Wednesday. The Delhi airport is the only airport to figure in the top 10 list from South and South East Asia. The airport has improved its ranking from 13th in 2021 and 17th in 2019. The Delhi airport witnessed a collective footfall of passenger traffic of over 5.94 crore in 2022.