It is well documented that hospitalisation for surgery is associated with increased anxiety (Dodds 1993). This study investigates the effectiveness of preoperative Nursing teaching module versus patient to patient teaching on anxiety among patients subjected to coronary artery bypass graft (CABG). Using non probability convenience sampling method a total of 100 surgical patients subjected to CABG were selected for the study from selected hospitals of Punjab. The study utilized quasi experimental design which consisted of Group1: 50 patients who received Preoperative Nursing Teaching Module and Group 2: 50 patients who had interacted with post operative CABG patients pertaining coronary artery disease and perioperaive care of CABG. Anxiety was assessed at two time points, preoperatively and postoperatively using State Trait Anxiety Inventory (STAI). A pretest was conducted to assess the baseline level of anxiety scores of both the groups (Group 1 and Group 2) of the patients using the State Trait Anxiety Inventory (STAI) followed by Preoperative Nursing Teaching Module for Group 1 and Patient to Patient teaching Method for Group 2. The posttest was carried out approximately after 3 days after the administration of Preoperative Nursing Teaching Module and Patient to Patient teaching Method. In pretest, the Group1, 5(10%) patients were having mild anxiety, 45 (90%) were having moderate level of anxiety; out of the 50 patients in Group 2, 8(16%) patients were having mild anxiety and 42(84%) were having moderate level of anxiety. Whereas during posttest, among 50 patients of Group1, 36(72%) patients were having mild level of anxiety followed by 14(28%) were having moderate level of anxiety. In group 2 out of 50 patients 9(18%) were having mild level of anxiety and 41(82%) were having moderate level of anxiety. The mean post test anxiety scores of the Group 1 patients were significantly lower (p<0.001) compared to their pretest anxiety scores, after administration of the Preoperative Nursing Teaching Module. On the contrary, the Group2 posttest mean anxiety scores were not significantly reduced compared to their pretest scores. Hence the Preoperative Nursing Teaching module is more effective in reducing the levels of anxiety among the patients subjected to CABG as compared to the Patient to patient teaching method. Association between the post test Level of anxiety of the patients and their demographic variables was found to be statistically insignificant.