Objective: Comparison between motor control exercise on swiss ball and PNF technique on patients with nonspecific low back ache. Study design: Comparative study. Setting: All subjects were included from Forest Research Institute at Dehradun. Method: A total of 30 subjects were recruited for the study based on inclusion and exclusion criteria after signing the informed consent form. The subjects were divided into two groups (I-15 patients on swiss ball exercises program and II- 15 patients on PNF exercises program). Outcome measures: Visual analog scale (VAS), baseline digital inclinometer, Roland Morris low back pain and disability questionnaire (RMDQ). Results: Showed significant improvement in the outcome measures in both the techniques. However, both methods were found to be similarly effective in decreasing pain and disability and improving flexibility in subjects with chronic non-specific low back pain. Conclusion: The study showed a significant improvement in pain, disability, and ROM in patients with non-specific low-back pain employing rhythmic stabilization technique as well as motor control exercise on swiss ball. However, both methods proved to be similarly effective in decreasing pain, disability and increasing ROM in patients with non-specific low back pain.