Delhi has been divided into Eleven Districts. Each District is headed by a District Magistrate. There are 33 Sub-Divisions in entire Delhi. Every district has three Sub-Divisions. Each Sub-Division is headed by Sub Divisional Magistrate.
The present system of administration in Delhi can be traced back to 1803, when Delhi came under British protection and eventually became part of the British Punjab. Delhi district had a Deputy Commissioner who was the Chief District Officer, having revenue and Registration powers. He was also the head of urban administration, being President of the District Board and the Municipality.