What is the purpose of Registration? What are the effects of non-registration?

By Registration of transaction of immovable property will become permanent public record. This is a notice to the general public. Those getting transfer of property should verify whether such property has been previously encumbered. According to Transfer of Property Act right, title or interest can be acquired only if the deed is registered. If a deed of transfer, which is compulsorily registrable, is not registered, it will not be admissible in evidence.