The Specific Relief Act,1963
Section 17. Contract to sell or let property by one who has not title, not specifically enforceable
(1) A contract to sell or let any immovable property cannot be specifically enforced in favour of a vendor or lessor. –
(a) Who, knowing not to have any title to the property, has contracted to sell or let the property;
(b) Who, though he entered into the contract believing that he had a good title to by the parties or by the court for the property, cannot at the time fixed by the parties or by the court for the completion of the sale or letting, give the purchaser or lessee a title free from reasonable doubt.
(2) The provisions of sub-section (1) shall also apply as far may be, to contracts for the sale or hire of movable property.