Human resource is the most important asset of an organisation. Human resources planning are the important managerial function. It ensures the right type of people, in the right number, at the right time and place, who are trained and motivated to do the right kind of work at the right time, there is generally a shortage of suitable persons.
The enterprise will estimate its manpower requirements and then find out the sources from which the needs will be met. If required manpower is not available then the work will suffer. Developing countries are suffering from the shortage of trained managers. Job opportunities are available in these countries but properly trained personnel are not available. These countries try to import trained skill from other countries.
In order to cope human resource requirements, an enterprise will have to plan in advance its needs and the sources. The terms human resource planning and manpower planning are generally used interchangeably. Human resource planning is not a substitute for manpower planning. Rather the latter is a part of the former i.e., manpower planning is integrated with human resource planning.