The worsening air pollution was a much talked-about issue in the courts' corridors as during the hearing in one of these matters, then Chief Justice of India H L Dattu remarked, "My grandson wears mask due to pollution and looks like a Ninja."In the year, the NGT acted tough on crop residue burning in northern states of Haryana, Punjab, Rajasthan, Uttar Pradesh and Delhi, which largely affects the air quality of national capital, by imposing fines on farmers and asked the governments concerned to come out with the notification banning the practice.