You can modify orders only it is pending. You can check for pending orders (not executed) in the order book section of the trading pages in AxisDirect and modify them. You can modify the rate, quantity and disclosed quantity.

Example., if you place an order for buying 100 shares of Axis Bank and order for 60 shares is executed,then,you can modify rate and quantity for the balance 40 shares. If the order is already fully executed it cannot be modified. You may also call at Trade-on-Phone desk to modify the order.