In field of administrative law, doctrine is nothing but the set of rules, framework, test, or procedural steps via the common law precedent using which the judgements can be determined for particular case. When judge defines the ruling, doctrine comes in place in which process is outlined as well as applied. This process is then further equally applied on all other cases. When enough judges make use of the process soon enough it becomes established as the de facto method of deciding like situations. In this paper, we are presenting the study on different doctrines such as doctrine of necessity, doctrine of legitimate expectations, and doctrine of delegation with respect to administrative law.