Delhi became the first city in India to supply ultra-clean Bharat Stage (BS) VI grade fuel (both petrol and diesel).
It has been done with an aim to combat the rising levels of air pollution in Delhi-NCR region.
Other cities in NCR like Noida, Gurugram, Ghaziabad and Faridabad as well as other 13 major cities, including Mumbai, Chennai, Bengaluru, Hyderabad and Pune will roll-out cleaner BS-VI grade fuel from January 1 2019.
By switching to BS-VI, India will join league of US, Japan and European Union, which follow Euro Stage VI emission norms.
The major difference in standards between the existing BS-IV and new BS-VI auto fuel norms is
BS-IV fuels contain 50 parts per million (ppm) sulphur,
while BS-V and BS-VI grade fuel will have 10 ppm sulphur.
Thus, newly introduced BS VI fuel is estimated to reduce amount of sulphur released by 80%.