Question: What  is a low-cost airline headquartered at Gurgaon, that is the largest airline in India, the third largest domestic airline being the flag carrier airline of India ?
Sentence (from "Air India"): Additionally, the carrier is the third largest domestic airline in India in terms of passengers carried (after IndiGo and Jet Airways) with a market share of 13.5% as of July 2017.
Relevant evidence: Yes