Lands surrounding gramathana sites in villages are used for agricultural purposes are known as Agricultural lands. The numbers given to them are called survey numbers. Agricultural lands within Green belt area have many restrictions with regard to conversion and constructions. Agricultural lands falling under urban agglomeration can be converted and used for non-agricultural purposes like, residential, commercial and Industrial subject to compliance of Zonal Regulation land use. It is very important to note that only Deputy Commissioner of Bangalore District is authorized to permit conversion of agricultural lands to non-agricultural purposes, falling under his jurisdiction.