To place an IOC or immediate or cancelled order on Arihant Plus, go to the stock quotes page of your desired scrip. 

Step 1: Click on Buy/ Sell to open the order pad

Step 2: In the top navigation pane, select the type of order viz. cover order, bracket order or regular order

Step 3:  Enter the quantity and the price. (The market price is automatically selected, if you want to place a limit order, click on "Custom Price" and enter the price)

Step 4: Enter the trigger price and limit price as required for your order type

Step 5: Click on advanced order, in the validity section click on "IOC"

Step 6: Click on Buy / Sell. If you have set up a review screen, you will need to confirm the order before it gets sent to the exchange.