Abstract: Background : The use of diaphragmatic breathing and various proprioceptive neuromuscular facilitation (PNF) techniques has become more prevalent in cardiorespiratory physiotherapy to improve pulmonary functions. However, limited evidence exists regarding evaluation of their effectiveness in stable COPD. Hence, the objective of the study was to evaluate and compare the effectiveness of intercostal stretch technique versus diaphragmatic breathing on dyspnoea, chest expansion and functional capacity in stable COPD. Methodology : Eighteen subjects were recruited based on inclusion and exclusion criteria. Dyspnoea score, chest expansion at three levels and 6 minute walking distance (6MWD) were obtained. Subjects were, then, randomly assigned to two groups. In group A, subjects underwent PNF technique using intercostal stretch for ten breaths in expiratory phase in supine lying position along with conventional chest physiotherapy, while in the group B, diaphragmatic breathing was given along with conventional chest physiotherapy.