BACKGROUND- Nonspecific low back ache could be a pain, muscle tension, or stiffness localized between an adjunct related to rib margin and inferior gluteal folds, without sciatica. Only 10% of the cases have a specific case. One in every of the chance factors is poor hamstring flexibility . PURPOSE- To compare the effectiveness of mulligan’s bent leg raise versus dynamic soft tissue mobilization in subjects with hamstring tightness in non – specific low backache. METHODOLOGY- fourty eight subjects, mean age 34.27±5.30 were enrolled. Group A (24 = fifteen male and Nine females) received Transcutaneous electrical nerve stimulation (TENS), Mulligan’s bent leg raise and conventional exercises. Group B (24 = Twelve males and Twelve females) received TENS, DSTM and conventional exercises, which underwent a 4 weeks of training program. The outcome measures were taken before the treatment and after the end of 4 weeks treatment program. OUTCOME MEASUREMENTS- The outcome was measured by using Numeric pain rating scale(NPRS) for pain, Quebec back pain disability scale and Goniometer for Active knee extension test. RESULT- There is a statistically significant improvement in both the groups but compared to Group-B , Group – A shows highly significant values in all parameters. CONCLUSION- Mulligan’s bent leg raise (BLR) is proved to be more effective treatment when compared with Dynamic soft tissue mobilization, but Dynamic soft tissue mobilization is also a less effective treatment in reducing non-specific low backache , reducing hamstring tightness & improving functional ability in individuals with hamstring tightness in non- specific low backache.