Explanation:

Section 21 and 22 – 
21. Description of property and maps or plans. (1) No non-testamentary document relating to immovable property shall be accepted for registration unless it contains a description of such property sufficient to identify the same. (2) Houses in towns shall be described as situate on the north or other side of the street or road (which should be specified) to which they front, and by their existing and former occupancies, and by their numbers if the houses in such street or road are numbered. (3) Other houses and lands shall be described by their name, if any, and as being in the territorial division in which they are situate, and by their superficial contents, the roads and other properties on which they abut, and their existing occupancies, and also, whenever it is practicable, by reference to a Government map or survey. (4) No non-testamentary document containing a map or plan of any property comprised therein shall be accepted for registration unless it is accompanied by a true copy of the map or plan, or, in case such property is situate in several districts, by such number of true copies of the map or plan as are equal to the number of such districts. 
22. Description of houses and lands by reference to Government maps or surveys. (1) Where it is, in the opinion of the State Government, practicable to describe houses, not being houses in towns, and lands by reference to a Government map or survey, the State Government may, by rule made under this Act, require that such houses and lands as aforesaid shall, for the purposes of section 21, be so described. (2) Save as otherwise provided by any rule made under sub-section (1), failure to comply with the provisions of section 21, sub-section (2) or sub-section (3), shall not disentitle a document to be registered if the description of the property to which it relates is sufficient to identify that property.