But at this time of the year, pollution in New Delhi soars.
A huge cloud of smog settles over the city as wind speeds slow down during winter.
It's full of air pollutants from vehicle exhaust, construction dust, industrial emissions and crop burning
On normal days, that's very harmful and can cause eye and nose infections, and lung diseases.
But during the coronavirus pandemic, those health risks can be even more challenging.
So, what can be done to avoid a disaster?
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