"7. An order of injunction restraining the defendant in a suit for specific performance of contract from making repairs or construction on the suit premises, as may be necessary, does not fall in any of the three categories. It is well established that an agreement to sale does not create any interest in the property. It only provides a cause of action to him to bring a suit claiming an equitable right of purchase based on Section 53A of the Transfer of Property Act. The order of injunction, therefore, cannot travel beyond the scope of Section 53A of the said Act. It is well settled that the right conferred by Section 53A is a right available to the defendant to protect his position. The defendant cannot claim any title on the basis of the provisions contained therein. As is said sometimes, the right under Section 53A is to be used as a shield but not as a sword."