All districts of Delhi have been included in the Red Zone category. Maharashtra, the most affected state, has the highest number of Red Zones - 14 districts - among all states. In Tamil Nadu, 12 districts fall under the Red Zones, 19 in Uttar Pradesh, 10 in West Bengal while nine each in Gujarat and Madhya Pradesh. Rajasthan has eight Red Zones. Assam has 30 Green Zone districts, the highest.