Air quality in the national capital is deteriorating. Earlier, the Supreme Court had said that bursting of firecrackers was allowed from 8 pm to 10 pm only on Diwali and other festivals. Other than that, the manufacture and sale of only ‘green crackers’, which have a low light and sound emission with less harmful chemicals, was permitted. The court had asked the police to ensure that banned firecrackers were not sold and said in case of any violation, the station house officer (SHO) of the police station concerned would be held personally liable and it would amount to committing contempt of the court.