New Delhi, Dec. 17 -- Following the IndiGo flight cancellation crisis, Aam Aadmi Party MP Raghav Chadha on Wednesday flagged the "duopoly" in the aviation sector, demanding that the Centre encourage other companies to enter the market.

In an interview with ANI, Raghav Chadha alleged that IndiGo, with its large share in the market, possess a "blackmailing power" against the government and Directorate General of Civil Aviation (DGCA).

The AAP MP said, "About a year ago, I spoke at length in Parliament about the aviation sector, raising several issues. These included the expensive food at airports, increasing flight rates, and, most importantly, something that is very relevant in today's context, that India's aviation sector is suffering f...