“Not to take any more risk with human health, the Supreme Court has reinstated the ban it imposed on sale of fire crackers in the Delhi-NCR region.

The “direct evidence of deterioration of air quality at alarming levels” that the Supreme Court cited to justify the ban has another player. Paddy stubble burning by farmers during the same period in Punjab, Haryana, Rajasthan, Uttar Pradesh and in the outskirts of Delhi, has also been blamed for chocking the Capital.”
Hindustan Times
Read it on Delhiair.org: Don’t penalize farmers for Delhi’s air pollution