The Directorate General of Civil Aviation (DGCA) issued a notification today revising the date to September 1.
The government had started charging a fee-- ranging from Rs 7,500 to 8,500-- from December 2016 in order to cross- subsidise flights to tier-2 and tier-3 cities under the RCS.
The amount was revised to Rs 5,000 in May this year.
"The said levy will now come into effect from 1.09.2017," according to the notification.
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The move was opposed by some private airlines and they challenged it in the court.
The notification adds that the amount already paid by the airlines will be adjusted against their account.
As many as 128 routes were awarded to five airlines in the first round of bidding for RCS in March. Through the RCS, the government aims to improve air connectivity to tier-2 and tier-3 cities.
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