Cities including Aizawl (19), Rishikesh (41), Silchar (41) and Ooty (42) have good AQI, according to the Central Pollution Control Board. Kohima (51), Madikeri (51), Naharlagun (52), Damoh (55), Hassan (55), Gangtok (57), Kannur (57), Thrissur (58), Sivasagar (62), Srinagar (64), Milupara (73), Shillong (74), Thiruvananthapuram (74) and Bilaspur (74) have satisfactory AQI.