Warm up (10 minutes with hot pack) and cool down exercises for a period of 5 to 10 minutes was given before starting and after the completion of exercises in supervised exercise program in all the groups. The following ergonomical advice were given to all the subjects, Avoid extreme knee bent positions, avoid squatting, crossed-leg sitting, frequent stair climbing or lifting heavy objects, avoid fatiguing postures except for infrequent short durations tasks, change posture frequently and use support where possible and avoid giving excess strain to the knees.

Mulligan mobilisation consisted of Medial glide mobilisation with movement, Lateral glide mobilisation with movement, with active knee flexion (61) depending on the subjects condition. The gliding force was sustained while the patient performed 3 sets of 10 repetitions.

Total 12 treatment sessions was given to each subject with the frequency of 3 sessions per week for 4 consecutive weeks.

This tool was utilized to assess the intensity of pain. A score of 0 denotes ""having no pain at all,"" while a score of 10 indicates ""the worst pain I've ever experienced."" The participants were asked to choose a number on the scale that accurately represented how much knee discomfort they were experiencing.According to a study conducted on individuals with knee OA, the interclass correlation was 0.95. Higher scores denote more intense pain; scores range from 0 to 10.

It is commonly used to assess lower extremity functional status, discomfort, and associated stiffness. The questionnaire consists of twenty-four questions: seventeen pertain to physical status, five concern pain status, and two address stiffness. Each question contains five alternatives starting from 0 which signifies no symptom or trouble at all to 4 which represents considerable difficulty in doing activities with severe symptoms. There are subscale scores for stiffness, discomfort, and functional status. The sum of the 24 items that were listed, with scores ranging from 0 to 96, was the definition of the total scores.