In India, there is a minimum population size for a settlement to be called a city.

5000

The correct answer is Option (2) → 5000

The census of India, 1991 defines urban settlements as “All places which have municipality, corporation, cantonment board or notified town area committee and have a minimum population of 5000 persons, at least 75 per cent of male workers are engaged in non-agriculture pursuits and a density of population of at least 400 persons per square kilometer are urban.