After the flight landed at Delhi Airport, the four passengers were handed over to security agencies. The airline also informed DGCA that they had been marked as unruly passengers by the airline.
India's No Fly List rules, unveiled in 2017, have a provision for banning unruly passengers from a minimum three months to a maximum of two years depending on the severity of the incident.
In fact, India's largest airline IndiGo last year barred 9 TV journalists from flying with the airline for 15 days over their alleged unruly behaviour onboard a flight in which actor Kangana Ranaut was travelling to Mumbai from Chandigarh in September.