as per law. If they fail to do so, they shall be bound thereby. In Rafique Bibi v. Syed Waliuddin20 it was held: “8. A distinction exists between a decree passed by a court having no jurisdiction and consequently being a nullity and not executable and a decree of the court which is merely illegal or not passed in accordance with the procedure laid down by law. A decree suffering from illegality or irregularity of procedure, cannot be termed inexecutable by the executing court; the remedy of a person aggrieved by such a decree is to have it set aside in a duly constituted legal proceedings or by a superior court failing which he must obey the command of the decree. A decree passed by a court of competent jurisdiction cannot be denuded of its efficacy by any collateral attack or in incidental proceedings.” The view taken herein was affirmed by a Bench of three judges in Balvant N. Viswamitra v. Yadav Sadashiv Mule21, and followed recently, in Asma Lateef v. Shabbir Ahmad22. 12.7