Pune, Nov 3 (PTI) A 33-year-old passenger on board an IndiGo flight allegedly tampered with the emergency exit door lever cover shortly after takeoff from Delhi, causing a mid-air scare, police said. Pune, Nov 3 : A passenger travelling on an IndiGo flight from Delhi to Pune allegedly attempted to open the emergency door lever cover shortly after takeoff, triggering an alarm on the.