a) the number of airports in the country being operated under Single Till & Hybrid Till structure;
(b) whether the Ministry has mandated all airports to move from Single Till to Hybrid Till structure to determine Airport Tariffs;
(c) if so, the reasons for the same;
(d) whether in past, Airports Economic Regulatory Authority (AERA) has opposed the Hybrid Till model as it increases the Airport Tariffs; and
(e) if so, the details thereof and the stance of the Ministry on the subject?