Aviation 7 vital issues in Indian aviation that are crying for the Modi government’s urgent intervention Updated : August 26, 2019 03:36 PM IST Tax on aviation turbine fuel is among the highest in the world, constitutes up to 40 percent of an Indian airline’s cost. Significant investment in airports has gone towards making terminals which don’t quite suit the market demand. 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.