Registration means recording of the contents of a document with a Registering Officer and preservation of copies of the document.
The documents are registered for the purpose of conservation of evidence, assurance of title, publicity of documents and prevention of fraud.
As defined in the Evidence Act, document means only matter expressed or described upon substance by means of letters, figures or marks or by more than any of those means intended to be used or which may be used for the purpose of recording that matter.
Instrument means any document by which any right or liability is, or purports to be, created, transferred, limited, extended, extinguished or recorded.
Section 2(6) of the Registration Act, 1908 defines that "immovable property" includes land, buildings, hereditary allowances, rights to ways, lights, ferries, fisheries or any other benefit to arise out of land, and things attached to the earth, or permanently fastened to anything which is attached to the earth, but not standing timber, growing crops nor grass.