With a nationwide lockdown in place, over 90 cities, including Delhi, recorded minimal air pollution in the last few days.
Welcoming the reduction in pollution, environmentalists urged the government to treat it as a "wake-up call" and stop its "obsession" with "development" at the cost of the environment.
India is currently under the biggest lockdown with around 130 crore people asked to stay home in view of the coronavirus outbreak, which has claimed 19 lives and infected over 900 people in the country.
The government has urged people to avoid unnecessary travelling, significantly reducing the traffic movement across the country.
According to the Centre-run