Legislature is the law-making organ of any state. In some written constitutions, like the American and Australian Constitutions, the law making power is expressly vested in the legislature.
However, in the Indian Constitution though this power is not so expressly vested in the legislature, yet the combined effect of Articles 107 to III and 196 to 201 is that the law making power can be exercised for the Union by Parliament and for the States by the respective State legislatures.
It is the intention of the Constitution-makers that those bodies alone must exercise this law-making power in which this power is vested. But in the twentieth Century today these legislative bodies cannot give that quality and quantity of laws, which are required for the efficient functioning of a modern intensive form of government.
Therefore, the delegation of law-making power to the administration is a compulsive necessity. When any administrative authority exercises the law-making power delegated to it by the legislature, it is known as the rule-making power delegated to it by the legislature, it is known as the rule-making action of the administration or quasi-legislative action and commonly known as delegated legislation.
Rule-making action of the administration partakes all the characteristics, which a normal legislative action possesses. Such characteristics may be generality, prospectivity and a behaviour that bases action on policy consideration and gives a right or a disability.
These characteristics are not without exception. In some cases, administrative rule-making action may be particularised, retroactive and based on evidence.