New Delhi, Aug. 3 -- IndiGo has imposed a flying ban on a passenger who slapped a co-traveller onboard the Mumbai-Kolkata flight on Friday. The incident occurred on flight 6E138, and the perpetrator was handed over to the security authorities at the Kolkata airport after landing, an official said on Friday. "In line with our commitment to discourage such unruly behaviour onboard flights, the individual has been suspended from flying on any IndiGo flights...," IndiGo said in a post on X on Saturday. P7...