Make the aviation business cost-effective

India needs a thriving aviation sector, but for that to happen it has to ensure one or two players do not dominate the sector. Currently, there is a clear duopoly with IndiGo and Tatas (through Air India, Air Asia and Vistara) enjoying 90 percent of the market share. The two big players strengthened their grip over the market after Go Air went out of business in May this year. Meanwhile, SpiceJet