In Air India's second run-in with an MP in weeks, one of its flights was held up for 20 minutes as a lawmaker from West Bengal, Dola Sen, argued with the crew over a seat for her wheelchair-bound mother. Ms Sen, who was on the Delhi to Kolkata flight, reportedly insisted on an emergency exit seat for her mother but was told by the airline that rules don't allow a passenger in a wheelchair to be seated in an emergency seat.