DefenceIndian Air Force CAS addresses launch of the web based e-Billing module By saurabh - March 29, 2017 0 59 FacebookTwitterPinterestWhatsApp ATF DIP-IndianBureaucracy The Chief of the Air Staff, Air Chief Marshal B.S. Dhanoa addressing at the launch of the web based e-Billing module ‘Aviation Turbine Fuel Digital Issue and Payment’ (ATF DIP), in New Delhi.