New Delhi, April 16 -- India's biggest airline is no longer just flying passengers-it's also figuring out how to stay with them through every leg of their journey.

InterGlobe Aviation, parent of IndiGo, is expanding into hospitality through a new partnership with French hotel major Accor. The two companies are building a unified hotel management platform with plans to operate 300 properties across India by 2030, targeting the fast-growing mid-market segment.

As part of this plan, Accor and InterGlobe have jointly invested in budget hotel chain Treebo, becoming its largest shareholders. Treebo will now develop and expand Accor's Ibis and Mercure brands across India. Once operational, the platform is expected to manage 30,000 rooms-markin...