Air quality in Delhi NCR region worsens
Pollution in the Indian capital New Delhi rose to "severe" heights on Thursday after hundreds of revellers in the city let off fireworks long into the night to mark the major Hindu festival of Diwali.
Pollution in the Indian capital New Delhi rose to "severe" heights on Thursday after hundreds of revellers in the city let off fireworks long into the night to mark the major Hindu festival of Diwali.