DGCA approval: Bengaluru airport is rolling out phased runway operational changes to cut delays and fuel burn, boosting flight capacity by 45 percent. Bengaluru: The Kempegowd International Airport (KIA) is set to begin a phased transition towards mixed-mode runway operations from November 11, following approval from the Directorate General of Civil Aviation (DGCA).The green signal from the DGCA came in on November 3, confirmed airport sources.