Gst on sub-air travel agent??

As per 3rd proviso to Rule 6(2) of Determination of Value Rules of GST, for domestic bookings the rate shall be 5% of basic fare and for international bookings it shall be 10%. for tour operators. As per my interpretation Sub-tour operators also comes under the ambit of valuation rules meant for Tour operators.

Air Travel agents prior to GST there was Composition scheme where the air travel agents were required to pay only 0.7%/1.4% of the Fare amount. However now till date they are not covered under the composition scheme.