What is the application of the Minimum brokerage concept in smart orders?

In this instance, minimum brokerage will be charged on an executed order basis at exchange-level. If your order trades on one exchange, Rs. 21 if your normal brokerage is lower than the minimum brokerage, and subject to a maximum of 2.5%. You will be charged Rs. if your order trades on more than one exchange. 21 per exchange if your normal brokerage is lower than the minimum brokerage. This limit is subject to a maximum of 2.5%