Stating that the air quality in Delhi NCR has "slipped into the 'Poor' category", the Environment Pollution (Prevention and Control) Authority (EPCA) has prohibited the use of diesel generator sets in the area, from October 15. The order is applicable in Delhi and other NCR towns of Ghaziabad, Noida, Greater Noida, Faridabad and Gurugram. Inter alia, the authority has...