The study design will be a randomized clinical trial (RCT). Sampling technique will be nonprobability convenience sampling. Data will be collected from KKT orthopedic spine center Lahore. Participants will be divided into 2 groups. Group A will receive Sound wave treatment protocol and standard physiotherapy treatment protocol , Group B will receive only Standard Physiotherapy treatment .Both groups will receive TENS and hot pack for 10 minutes. The inclusion and exclusion criteria will be Both gender , aged 18-45 years , Minimum 03 months chronicity of lower back pain , Clinically diagnosed with the help of tests SLR test to rule out nerve root compression or disc herniation, FABER test to rule out SI joint dysfunction ,Scobber Test to assess lumbar flexibility and mobility, Lumber quadrant test to identify pain from facet joints, Lumber extension test and Pain localized to the lumbar region, potentially radiating to the buttocks or thighs but not below the knee. The Exclusion Criteria will be Chronic systemic soft tissue and bony diseases , History of spinal trauma or fractures , Severe spinal stenosis or spondylolisthesis and Pain radiating to one or both legs, consistent with lumbar radiculopathy. The outcome measure tools will be NPRS, inclinometer, x-rays and Oswestry Disability Index (ODI) . Data will be analyzed using SPSS . Ethical Committee of Riphah International University, and informed consent will be secured from all participants.