Sub-divisional magistrate

A sub-divisional magistrate, also known as assistant collector, sub collector, assistant commissioner, sub-divisional officer (civil), or revenue divisional officer, is an administrative officer of a sub-division within an Indian district, exercising executive, revenue, and magisterial duties. The specific name depends on the state or union territory. Their primary responsibilities include revenue collection, maintaining law and order, overseeing developmental activities and coordinating various departments within a sub-division.

This is the post to which officers of the Indian Administrative Service or state administrative services are first appointed after training. These officers are subordinate to a district magistrate, district collector or deputy commissioner, who serves as the administrative head of a district. The judicial powers of a sub-divisional magistrate are drawn from the Criminal Procedure Code 1973.