Your cover order remains under open orders until both legs (buy/sell and stoploss) of the order are executed. Your order can be modified only until it is under open orders.
You can view the status of your buy/sell order under order status.
If the first leg of your cover order has not been executed, you can modify it by clicking on the modify button in the order tab. You can only modify the execution price and not the number of shares. To modify the stop loss order leg of your cover order switch to the stop loss order tab and click on modify stop loss. Enter the stop loss price and swipe to modify.
If the first leg of your cover order has been executed, you will not be able to modify the first leg. You will only see the option to modify the stop loss order under both tabs. Click on the modify stop loss button to modify the stop loss.
An order can only be modified if it is in pending state, i.e. it is not yet executed on the Exchange.
You can modify a cover order if,
To modify a cover order, please follow the instructions in this link.