The Authority may,--
         (i) with the previous approval of the Central Government, charge fees or rent--
             (a) for the landing, housing or parking of aircraft or for any other service or facility offered in connection with aircraft operations at any airport, heliport or airstrip.
             Explanation.--In this sub-clause "aircraft" does not include an aircraft belonging to any armed force of the Union and "aircraft operations" does not include operations of any aircraft belonging to the said force;
             (b) for providing air traffic services, ground safety services, aeronautical communications and navigational aids and meteorological services at any airport and at any aeronautical communication station;
             (c) for the amenities given to the passengers and visitors at any airport, civil enclave, heliport or airstrip;
             (d) for the use and employment by persons of facilities and other services provided by the Authority at any airport, civil enclave, heliport or airstrip;
         (ii) with due regard to the instructions that the Central Government may give to the Authority, from time to time, charge fees or rent from persons who are given by the Authority any facility for carrying on any trade or business at any airport, heliport or airstrip.