Purpose: The study was conducted to compare the effectiveness of Pelvic floor exercise versus Mulligan concept lumbar SNAG on Chronic Non-specific low back pain and functional disability in postpartum women. Introduction: Low back pain is a common musculoskeletal condition and one of the leading causes of functional disability. Non-specific low back pain is defined as low back pain not attributable to a recognizable, known specific pathology (e.g., infection, tumor, osteoporosis, lumbar spine fracture, structural deformity, inflammatory disorder, radicular syndrome, cauda equina syndrome). Non-specific low back pain is persistent 2-3 years after delivery and which interferes with their activities of daily living. Pelvic floor exercise are done to improve the strength of the pelvic floor muscles. Mulligan concept Lumbar SNAG (Sustained Natural Apophyseal Glide) is one of the techniques performed from a weight bearing position, with the mobilizing force applied over the affected spinous process while the patient is enacting the painful or limited movement Objective: The objectives of the study were to evaluate and compare the effects of pelvic floor exercise and mulligan concept lumbar SNAG on chronic non-specific low back pain at the end of 8 weeks in postpartum women. Method: 30 subjects within the age group of 30-35 years were selected on the basis of inclusion and exclusion criteria. After taking their written consents they were divided into 2 groups. Group “A” received pelvic floor exercises and conventional protocol for 8 weeks. Group “B” received mulligan concept lumbar SNAG for 8 weeks. Pre and post intervention readings were taken using the VAS scale (pain) and the outcome measure ODI (functional disability) Result: The study showed that the Group B had significantly better results than the Group A with p values 0.0039 and 0.0031 for pain and functional disability respectively Conclusion: This study concludes that Mulligan concept lumbar SNAG is more effective than Pelvic floor exercises in improving pain and functional disability in post-partum women with chronic non-specific low back pain.