Background: Adhesive capsulitis of shoulder affects from 2% to 3% of the general population and is seen commonly at age of 40-65 years. Adhesive Capsulitis is a syndrome defined as an idiopathic painful restriction of shoulder joint movement resulting in over-all restriction of the gleno-humeral joint. Aim: The aim was to compare the effect of Maitland mobilization as an intervention to conventional physiotherapy in patients with adhesive capsulitis on pain, ROM (flexion, abduction, external rotation, internal rotation) and Shoulder pain, and Disability Index (SPADI). Methods: The research design used was Randomised experimental study design. Thirty participants were allocated into two groups, participants with even serial number were allotted for conventional therapy group A and those with odd serial numbers were allotted for Maitland therapy group B. Conventional therapy protocol included Ultrasound to shoulder joint for 7 days and Shoulder Mobility Exercises which were given 1 session (20 repetitions) per day for 15 days. Maitland therapy protocol included Ultrasound to shoulder joint for 7 days and Maitland mobilisation technique and Shoulder Mobility Exercises which were given 1 session (20 repetitions) per day for 15 days. Pre and post intervention scores were measured in terms of NPRS, SPADI, and ROM of the shoulder joint. The Shoulder mobility exercises included full (available) ROM exercises for shoulder joint and capsular stretching exercises. Conclusion: On the basis of this study, it can be concluded that there is a more significant increase in ROM, and SPADI score and a significant decrease in pain on NPRS by Maitland mobilization therapy along with conventional therapy as compared to conventional physiotherapy alone.