This is super accurate.
Fyi - new Delhi has the most stringent vehicular regulations in India. All commercial vehicles in Delhi run on natural gas - both petrol and diesel are banned.
India's pollution levels are not industrial or vehicular - they are agriculture waste burning. And they are timed with agricultural harvesting cycles.
We have super fragmented farmlands who are really poor and this causes bad practices of disposal .
We are a service based economy - but to be able to bring the bottom of the pyramid out of poverty, we need to accelerate manufacturing and bring modernisation into agriculture. Not to mention education.