A sub-division is an administrative division of a district in India.
In some states (Andhra Pradesh, Telangana, Tamil Nadu, Kerala) they are called Revenue Divisions.
[4] For example, in West Bengal, the Murshidabad district contains five sub-divisions (mahakumas) A Revenue division should not be confused with divisions of a state.
States are divided into multiple divisions (headed by divisional commissioners in some states), and these divisions are further divided into districts (headed by district magistrates, collectors, or deputy commissioners).
Revenue division is not synonymous with sub-division in every Indian state.