Inclusion Criteria:  Both genders Subjects with 40 years of age and above Patients with hamstring tightness ACR clinical + radiological classification criteria for knee osteoarthritis  Exclusion Criteria:  Patients with positive sciatic nerve test (SLR) Patients with neurological disorder impacting on lower extremity Musculoskeletal knee deformity e.g. varus Patients with lower limb internal fixation History of previous lower limb arthroplasty or another knee surgery Patients with history of infectious disease or malignancy effecting the lower extremity . Using assistive device(stick/cane) History of spinal surgery Patient having low backache or sciatica