20 Participants in this arm will undergo a combined exercise program consisting of the Otago Exercise Program (OEP) and conventional Physiotherapy. The intervention is designed to strengthen antigravity muscles (hip, knee, and trunk extensors), improve balance, coordination, and functional mobility, and reduce fall risk in patients with Parkinson's disease.

20 Participants in this arm will under go Frenkel's Exercises program and conventional physiotherapy. This intervention help Parkinsons patient by improving coordination, balance and enhance motor learning and confidence

After collecting the patient's data appropriate modalities will be applied to initiate the treatment session. This includes the use of an Electric Heating pad on the lower limb for 10 mints. Gentle walking will be performed for 1 mints along with arm swing (10 repetitions) and neck stretching focusing on upper trapezius muscle (3 repetition).After that the12 steps of Otago exercise will be performed with 10 repetition.Total session time is 40 mints.

Strength of major antigravity muscle including Hip muscles, Knee muscles and ankle muscles.

strength evaluated by using Manual Muscle Testing based on oxford Grading Scale (0-5).

. Grade 0 ( No contraction).

• Grade 1 (trace): slightly contraction detected but no movement occur at joint.
• Grade 2 (poor): Full range of motion in a gravity eliminated position.
• Grade 3(Fair): Full range of motion against gravity.
• Grade4 (Good): Full range of motion against gravity moderate resistance.
• Grade5 (Normal) Full Range of motion against gravity and maximum resistance. Participants tested in standardized position for each group. unit of measurement : MMT grade (0-5)

Balance assessed through the Berg Balance Scale (BBS). Berg Balance Scale items: 14 Tasks (sit to stand, standing, stepping, unsupported, reaching, turning) total score (0-56) scoring:0-4 for each task Maximum score=56 41-56=low Fall risk 21-40=Medium Fall risk 0-20=High Fall risk