What are the exemptions of certain documents executed by or in favour of Government under The Registration Act, 1908 ?

According to the Registration Act, 1908, following are the exemptions available on documents registered by or in favour of government: Documents issued, received or attested by any officer engaged in making a settlement or revision of settlement of land revenue and which form part of the records of such settlement. Documents and maps issued, received or authenticated by any officer engaged on behalf of Government in making or revising the survey of any land which form part of the record of such survey. Documents which, under any law for the time being in force are filed periodically in any revenue office by patwaris or other officers charged with the preparation of village records. Sanads, inam, title deeds and other documents purporting to be an evidence, grants or assignments by Government, of land or of any interest in land. Notices given under Section 74 or Section 76 of the Bombay Land Revenue Code, 1879 of relinquishment of occupancy by occupants or of land by holders of such land.