The study titled “Partnership in Human Resources Function by Udai Pareek defines Human Resource in detail. According to him Human Resource facilitates for the effectiveness of all humans in the organization. He says that HRD is the combination of different partners and these partners have different objectives to perform in an organization. Top management, Line Management, Personnel or HRM, Industrial Relations and HRM are those five partners to HRD. For an effective functioning of any system the influence of its sub-system are very important. The researcher here delineates the functions of eleven subsystems to HRD. Human Resource (or Manpower) Planning, Recruitment, Compensation, Placement, Work Planning, Promotion, Career Planning, Development and Training, Reward System, Self-Renewal System and Facilitation and Establishment are those sub-systems. All these sub-systems are explained within the five partners of HRD.