Pollution continues to affect the quality of air in the national capital. Air Quality Index remains in 'very poor' category in parts of Delhi as per Central Pollution Control Board (CPCB) data. In order to combat pollution, Delhi government recently launched, ‘Green Delhi’ application. Other campaigns like ‘Yudh Pradushan ke Virudh’ and ‘Red Light On, Gaadi Off’ have also been implemented to reduce pollution.