Bajaj Auto Ltd launched the first lot of its CNG (Compressed Natural Gas) autorickshaws in Delhi on 29 May 2000. The auto, with a 3-kg CNG tank and a standby 3-litre petrol tank, is powered by a 175 cc, four-stroke single OHC engine that gives about 50 km/kg of CNG and meets the Bharat-II emission norms.