Latest Indian Government statistics show the country's domestic passenger market shrunk 15% in April.
The statistics also reveal Kingfisher Airlines and Jet Airways/JetLite have overtaken Air India which now trails a distant third.
India's civil aviation ministry says in a statement that the country's airlines in April carried 3.3 million passengers. The statement fails to mention the April 2008 figure but local media reports say it was 3.9 million so the year-on-year fall is 15%.
In the month of April, Kingfisher was market leader with 861,000 domestic passengers representing 26% market share.
Jet Airways/JetLite was second with 796,000 passengers and 24% market share and Air India, which merged with Indian Airlines, had 583,000 passengers and 18% market share.
The other carriers listed are SpiceJet with 387,000 passengers (12%), GoAir with 145,000 (4%), IndiGo with 387,000 (14%) and Paramount Airways 75,000 (2%).
Air India also recorded the lowest passenger load factor of all the carriers with 60%.
Paramount, which operates Embraer regional jets, had 89% followed by IndiGo 72%, GoAir 72%, JetLite 69%, SpiceJet 68%, Jet 65% and Kingfisher 64%.