Aims and Objectives:-To study effects of conventional physical therapy versus proprioceptive exercises and conventional physical therapy in patients having knee osteoarthritis To Compare the effects of conventional physical therapy Verses proprioceptive exercises in knee osteoarthritis patients. Sample size: 40 patients (20 in each group), Study Design: Interventional Study, Study setting: A 1950 bedded tertiary care teaching hospital with well equipped medical and surgical intensive care unit and musculoskeletal department, Sample and Sampling method: 40 patients were randomly selected and assigned in 2 groups, as Group 1(control group), Group 2 (Interventional group) in equal numbers Exclusion Criteria: The total subjects of 40 were included in the study the inclusion & exclusion criteria were Inclusion Criteria: Patient diagnosed as a case of osteoarthritis, Subjects with both grade 2 and grade 3 OA knee & Exclusion Criteria were :Any inflammatory or other unilateral band bilateral Knee osteoarthritis, Patients in age group of 35-70 years, Patient with locomotor diseases, Any significant peripheral and CNS disease, Any other joint involvement, Uncontrolled hypertension and cardiac problem, Any previous knee injury, Patient less than 45 yrs and more than 65 yrs. Result: Mean angle of proprioceptive acuity at (baseline) pre treatment in patients in left knee at 130,250,220,190 was 3.40, 4.43, 5.93, 6.90 and in post treatment 4 week was 2.56,3.20,3.73,3.73.Conclusion: propriceptive exercises superiror than conventional exercise