The density of population per sq. km in Kolkata as per 2001 census is around :
| Question | The density of population per sq. km in Kolkata as per 2001 census is around : | |
| Type | multiple_choice | |
| Option | 25 thousand | correct |
| Option | 20 thousand | incorrect |
| Option | 15 thousand | incorrect |
| Option | 10 thousand | incorrect |