The substitute case is the place where the public authority gets a bigger number of expenses on a specific day than it spends. Then, at that point, there might be a framework wide deficiency of stores. Therefore, excess finances will be sought after on the interbank market, and along these lines the momentary loan fee will increase towards the markdown rate. Accordingly, to keep an objective loan fee somewhere close to the help rate and the markdown rate, it should deal with the liquidity in the framework to guarantee that the right measure of stores is available in the banking system.[12]