Doctrine of check and balance system is the exception of doctrine of separation of power, even then both doctrine is important for any kind of federal government to function properly. The discharge of functions by the worldwide political system is more or less the same, or if not the same, but will be comparable. Therefore, this paper compares functioning of check and balance system in India, United States and Australia. Checks and balances are a set of procedures designed to reduce errors, prevent improper behavior, and reduce the risk of power concentration. Check and balance is system in which each person is authorized with their particular responsibilities, considering the objective of assigning authority with avoiding the probability of one person or any particular department gets complete control to make or influence the decision for their own benefit. Along with this it also promotes Mutual Corporation amongst every department to function smoothly. The term is most commonly associated with government. As we all know for the smooth functioning of any democratic country it requires doctrine of separation of power. Therefore, internal controls of this nature in government machinery can help improve operational efficiency.