New Delhi, March 10 -- IndiGo said on Tuesday that CEO Pieter Elbers had resigned from his position with immediate effect for personal reasons, months after mass flight cancellations left tens of thousands of passengers stranded and drew regulatory scrutiny.

The airline said its managing director Rahul Bhatia would manage the company in the interim until a replacement is hired. Bhatia's InterGlobe Enterprises is the largest shareholder in IndiGo operator InterGlobe Aviation, with a 35.69% stake as of December.

India's largest airline scrapped about 4,500 flights in the first weeks of December, highlighting concerns over limited competition in the world's fastest-growing aviation market.

The airline apologised to customers after it fail...