This is what I see on ITA for J class, LHR-AUH-DEL
Fare 1: Carrier EY DAPOWGB LON to DEL (rules)
Passenger type ADT, ONE-WAY-ONLY fare, booking code D
Covers LHR-AUH (Business), AUH-DEL (Business)
143,168.00
Indian User Development Fee (IN) 1,049.00
(YQ) 997.00
United Kingdom Air Passengers Duty (GB) 14,148.00
United Kingdom Passenger Service Charge (UB) 4,480.00
Will I have to pay just YQ or User Development Fee, GB and UB as well?