There are two main types of companies - private and public. A private company has 1-50 shareholders and its name must end in "(Pvt) Ltd". A public company has a minimum of one member and its name must end in "Ltd".
There are three types of public sector business entities - departmental undertakings which are managed by government departments, public corporations which are corporate bodies created by special acts, and government companies which are established under the Companies Act and have at least 51% government ownership.
The joint sector involves both government and private sector ownership and management of an undertaking, with the government typically owning at least 26%. Characteristics include joint ownership and control by partners, no separate legal entity