Aim: The aim of this study is to investigate the effect of constraint induced movement therapy in improving upper limb function of children with hemiplegic cerebral palsy. Methodology: After satisfying inclusion and exclusion criteria the subjects were randomly selected and assigned in two group: group1 (Experimental Group) and group 2 (Controlled Group). Each group consists of 15 samples on which after applying QUEST, T- test also applying to analysed difference between two groups which is further sub- divided between Pre- Treatment and Post Treatment. Results: QUEST and Parametric Test were the statistical tools evaluating the result at the end of 6 Weeks intervention in which both the group shows significant improvement. Group 1 t- test value (2.03) is better than the group 2 t value (0.164). Conclusion: Both the treatment techniques are effective to gain success on the recovery of C.P children. Group 1 shows higher score than group 2. Similarly post treatment in both the groups shows higher response than the pre treatment stage in both the groups.