Bengaluru: To add further impetus to the building of an eco-friendly mobility network to the state’s capital GAIL Gas added three new Compressed Natural Gas (CNG) filling stations in the city. GAIL Gas, a City Gas Distribution Company today commenced the CNG sale at three more locations in Bengaluru, viz. Kengeri, Kadugodi-Cross and Hosabasavanapura- Medahalli.