Poor air quality is the "biggest environmental risk to public health thought the world to be linked to about 40,000 premature deaths a year - the government says. While air pollution has been mostly falling, in many cities nitrogen oxides - which form part of the discharge from car exhausts - regularly breach safe levels .
Diesel vehicles produce the overwhelming majority of nitrogen oxide gases coming from roadside sources.
The government was ordered by the courts to produce a new plan to tackle illegal levels of harmful pollutant nitrogen dioxide, a form of the nitrogen oxide pollutants emitted by vehicles.
Hybrid vehicles, which combine petrol and electric motors, will not be included in the sales ban.
A report by the UN's Intergovernmental Panel on Climate Change has warned that "rapid, far-reaching and unprecedented changes in all aspects of society" are needed to keep global temperatures from rising by more than 1.5C.
During CII’s Annual Session 2017, Power Minister Piyush Goyal said, “We are going to introduce electric vehicles in a very big way. We are going to make electric vehicles self- sufficient like UJALA. The idea is that by 2030, not a single petrol or diesel car should be sold in the country,”