A postoperative pulmonary complication (PPC) is the most common serious complication after Abdominal surgery under GA which lead to longer hospital stays and have deleterious outcomes on lung volumes, mucociliary clearance, accumulation of mucus, saliva and cough reflex. Chest physiotherapy for airway clearance which includes postural drainage, chest percussion, vibrations, Along with these, breathing exercises such ACBT and Blow bottle technique are recommended to clear secretion which aid in enhancing pulmonary function by effectively mobilizing and eliminating excess bronchial secretions. This study of randomized clinical trial will check the comparative effect of ACBT and Blow Bottle Technique in patients with abdominal surgeries under GA by taking a sample of 44 patients through non probability convenience sampling technique. Subject of both gender will be included between the age of 30 to 50 years who will undergoes with elective abdominal surgeries under GA (Cholecystectomy, Hysterectomy ,Appendectomy, Hemorrhoidectomy) and Laparoscopic /open. Elective surgeries under spinal anesthesia, emergency surgeries, cardiothoracic surgeries and hemodynamically unstable subjects will be excluded. 22 subjects will receive ACBT and other 22 subjects will receive Blow bottle technique for 20 minutes duration per session, two sessions per day for a period of 5 days. The status of airway clearance, oxygen saturation and lungs volumes will be measured pre and post intervention on day 1 and at the end of 5th day by using BCSS, Pulse oximeter and Spirometer.