What is the minimum number of members required in the Complaint Disposal Committee (CDC)?

What is the minimum number of members required in the Complaint Disposal Committee (CDC)?

شکایت نمٹانے والی کمیٹی میں ارکان کی کم از کم کتنی تعداد درکار ہے؟
Explanation

The minimum number of members required in the Complaint Disposal Committee (CDC) is 4,