Objective: To relieve pain on the tender points on piriformis muscle & to reduce the functional disability caused by piriformis syndrome by the treatment of strain/ counterstrain technique for 4 weeks. Materail and Method: Total 38 subjects having piriformis syndrome were selected as per inclusion & exclusion criteria. Subjects were explained about the intervention& written consent was taken. The Initial evaluations of the subjects were done by using Lower Extremity Functional Disability Scale. Subjects were given Classical Strain/Counter strain technique. Result: The strain counter strain technique was effective in reducing functional disability associated with piriformis syndrome. Conclusion: The strain counterstrain technique was effective in reducing functional disability & tenderness of tender points in the piriformis muscle associated with piriformis syndrome.