The main objective of the study is to determine the effect of lion's breath technique along with chest percussion therapy in pneumonia patients. This study will be randomized controlled trial with non-probability convenient sampling. Sample size will be 90,45 in each group. Participants included will be adults aged 18 years and above diagnosed with pneumonia. Willing to comply with the study protocol. Both male and female will be included. Participants should be in stable health conditions to participate in the Study. Patients with severe or life-threatening pneumonia requiring immediate intensive care and patients with physical or cognitive limitations. Patients with a history of chronic respiratory conditions such as COPD, bronchitis, or asthma. Pregnant or breastfeeding women. Individuals with musculoskeletal or neurological conditions and Patients with contraindications to chest percussion therapy, such as recent surgery or trauma to the chest area will be excluded. Group A (Lion's Breath Technique + Chest Percussion Therapy) Daily supervised Lion's Breath Technique sessions will be for 20 minutes for 1 week. Trained physiotherapists administer chest percussion therapy will be to mobilize secretions and improve lung function. Daily session for 30 minutes for 1 week. Pre and post data will be gathered. Outcome will be measured by using 6 minute walk test, Spirometry (FVC, FEV1/FVC and PEF), Functional Independence Measure.