The incident happened between 8:30 PM and 9:00 PM. The passengers, who as a group were travelling to Raipur from Hyderabad, "were trying to exchange seats among themselves. An altercation erupted between the cabin crew and two-three members of the group over this.
"The cabin crew then called the ground staff to assist them. The situation worsened and led to the extent of offloading of passengers," airport police inspector T Sudhakar said.
The airline in a statement said the passengers were offloaded "on the grounds of unruly behaviour" and an FIR has been lodged with local police in this regard.
"Indigo confirms offloading of 70 passengers (group booking) who were scheduled to fly on 6E-466 from Hyderabad to Raipur on January 22 on the grounds of unruly behaviour," the statement said.
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The cockpit informed the Captain-in-Command of the
situation who further brought it to the notice of airline's security ground staff.
It said the other fliers also requested the crew to offload the "unruly" passengers.
Despite their "unacceptable" behaviour, IndiGo went out of its way to ensure they all are served meals at the airport and accommodated on the subsequent flight free of charge, the airlines said.
"The staff also arranged doctors for other passengers on board who required medical assistance," it said.