This study will be a randomized clinical trial to determine the effects of both techniques on COPD patients and disease severity in patients who falls into the inclusion criteria, who are willing to participate, patients with age limit between 45 to 65 years, GOLD stage II, and patients will be excluded who have cardiac disease, abdominal or thoracic surgeries and in critical condition by taking sample of patients through non probability convenient sampling and randomly allocating them to two groups A and B out of which A will receive manual diaphragmatic techniques, B will receive lateral coastal breathing exercise up to the duration of 2 times a day, 3 days per week for up to 3 weeks. Pre and post exercise outcomes will be assessed. The data will be analyzed through SPSS 26
