Table 4.

Corresponding relationship between urban population and COVID-19 cases

Category	Residual	No. of districts	Percentage of total districts	District
Very high	Above 6	8	42.10	Kolkata, Howrah, Hooghly, North 24 Parganas, South 24 Parganas, Barddhaman, Nadia and Darjeeling
High	4–6	4	21.05	Jalpaiguri, Cooch Behar, East and West Medinipur
Medium	3–4	2	10.52	Malda and Murshidabad
Low	2–3	5	26.32	Uttar Dinajpur, Dakshin Dinajpur, Birbhum Bankura and Purulia
Very low	Below 2	-	Negligible	Islands of South 24 Parganas