BJP leader Tejasvi Surya opened the emergency exit of an IndiGo plane last month "by mistake" and apologised for it, Civil Aviation Minister Jyotiraditya Scindia said today, confirming an incident that has spurred opposition derision and attacks on the Karnataka MP. IndiGo said on December 10, a passenger accidentally opened the emergency exit of its flight 6E 7339 (Chennai to Tiruchirapalli) at the Chennai airport during the boarding process, when the plane was on the tarmac. The passenger apologised, said the airline.