The Indian Registration Act of 1908 outlines various sections related to compulsory and optional registration of documents in India. Key points:
1) Section 17 lists documents of which registration is compulsory, including gifts of immovable property, leases over one year, and instruments related to rights over property valued over 100 rupees.
2) Section 18 allows for optional registration of similar documents valued under 100 rupees and leases under one year.
3) Documents must generally be presented for registration within 4 months and must contain an accurate description and map of the property for registration relating to land.