India has been the world's fastest growing domestic air market for 22 months in a row, the International Air Transport Association (IATA) said on Tuesday. This means in last 22 months, India has seen the highest growth in domestic air travel over the same month in previous year.

"India led domestic all markets in year-to-year growth for the 22nd month in a row. January traffic soared 26.6%, marking the 15th consecutive month of 20%-plus annual growth. Demand is being stimulated by strong flight frequency. (Globally) Domestic air travel climbed 9.9% in January year-on-year. All markets except Brazil showed growth, paced by double-digit increases in China, India and Russia," IATA said. China's domestic traffic growth was not far behind, up 23.2% compared to January 2016.

The Mumbai airport is already choked and has no slots. "Unless the government acts fast on infra addition and multiple airports in metros, we will see a Mumbai-like crunch at more and more cities in coming years. Today Indian airlines have ordered hundreds of planes but no one even knows where they will be parked," said an airline official.