Whether part performance is recognised and what are the rights of the purchaser?

Section 53 A of Transfer of Property Act recognises part performance.  The purchaser who gets possession of the property under terms of contracts gets equitable rights. The seller who puts the purchaser in possession and anybody claiming under is debarred from enforcing against the purchaser or anybody claiming under purchaser. The seller cannot enforce eviction against the purchaser, once he has put him in possession of the property. The purchaser can continue and enjoy the possession of the property even though the sale deed is not executed and registered. Section 29 of Registration Act, recognizes the part performance.