Background: Postoperative urinary retention (POUR) is a common and serious problem faced during early postoperative period. Incidence varies between 4 to 70%. Post operative urinary retention can be treated by conservative methods like providing privacy to the patient, relaxation exercises and mobilization. If these measures fail, only then the patient should be catheterized as a last resort. Aim: To compare between in/out catheterization and overnight catheterization and determine which method is better. Methods: This randomized controlled trial was carried out on 130 patients who developed postoperative urinary retention after randomly dividing them in two groups. Group A included patients with in/out catheterization, and group B consist of patients undergoing overnight catheterization. Results: Mean age of patients was 33.70±4.6 years for group A and 38.45±3.3 years for group B. In group A (in/out catheterization) out of 65 patients, 18 required re- catheterization. But from group B, re- catheterization was done in 3 patients only.