Aviation Domestic carriers may need Rs 350 billion capital in 3-4 years, says report Updated : November 30, 2018 05:34 AM IST These funds would help bring down the high debt-levels in the airline industry, Icra said in a note. Significantly, all the three listed airlines, Jet Airways, InterGlobe Aviation-run IndiGo and SpiceJet, are currently in red. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.