Large bowel obstruction (LBO) is a serious and potentially life-threatening surgical emergency which is associated with high morbidity and mortality rate, ranging from 23 to 77.6% and 11.9 to 27%, respectively. There are various etiologies of LBOs. The most common is colorectal cancer which accounts for over 60% of all LBOs. Aims and Objectives: To Analyze the large bowl malignancy presenting as acute obstruction in a tertiary care teaching hospital. Materials and Methods: This prospective study, was conducted in theDepartment of surgery of Pandit Bhagwat Dayal Sharma Post Graduate Institute.Of Medical Sciences (PGIMS), Rohtak, Haryana, India between October 2021 andSeptember 2022. Total of 22 cases of Malignant Large Bowel Obstruction, 13 patients were male and9 were female. Results and Observations: There were 13 male and 9 females in our study. The average age of patients was 72.5 years (from 52-82 years). For hemicolectomies, 4patients for Hartman’s procedure were performed. Average hospital stay was 14daysand there were 13patients with complications, respectively 4 with anastomotic leakage and 9 with wound infection. Conclusion: Treatment of bowel obstruction because of colorectal carcinoma is challenging even for experienced surgeons. Several parameters such as staging of the tumor, presence of complications, lymph node metastasis, general condition of the patient and experience of the surgeon should be taken into consideration while making the decision of primary bowel procedure and anastomosis, or procedures without anastomosis (colostomy) would be the best solution for the patient. According to our experience we suggest that primary bowel procedure and anastomosis should be the preferred method, except in cases of bowel perforation.