The purpose of this double-blinded, randomized controlled trial study is to compare the effect of single task versus dual task balance training in patients with multiple sclerosis. Fifty patients with MS will be included in this study, if they have following criteria: relapsing-remitting type of MS, ability to stand and walk without assistive devices, maximum score of 53 on Berg Balance Scale, Expanded Disability Status Scale between 2 and 4/5 and Mini-Mental State Examination more than 24. Persons are ineligible for the study if they have an exacerbation of symptoms due to relapse within 2 months of the baseline measurement, steroid treatment within 3 months of the baseline measurement, any musculoskeletal or neurological conditions except MS limiting balance or gait and vertigo. Patients randomly assign in dual task balance training or single task balance training(control) group. Participants receive 45 minutes training session, 3 times a week for 4 weeks. The participants in the single-task training group receive balance activities under single-task conditions while participants in dual-task training group practice balance activities and performing cognitive tasks simultaneously. Outcome measures for assessing Various aspects of balance are force plate, Functional reach test, Timed Up and Go, 10 meter Walk gait speed, 2 Minute Walk, Berg Balance Scale, Activities Specific Balance Confidence and Functional Gait Assessment. All measures will be collected at baseline and at the end of training.