India’s capital New Delhi is swamped by smog, and air pollution kills 2 million Indians a year. But some suffer more.

From Brownberry box carriages and palkis to the world-famous cycles and taxis, the streets of Kolkata -- once the capital of ...

This week, the air quality index (AQI) in India's capital is hovering at "unhealthy" levels between 200 and 300. The index indicates the measured concentration of pollutants like fine particles in the ...