Section 53 A of the Transfer of Property Act deals with

Section 53A protects a transferee who, under a written and signed contract to transfer immovable property for consideration, has taken possession in part performance and has done or is willing to do his part; the transferor cannot enforce against him any right other than one given by the contract. Lis pendens is in section 52, while frustration belongs to contract law (section 56 of the Contract Act) and severability to constitutional and contract law.