You can easily sell shares from your holdings report on Arihant Plus. All you need to do is go to Trades in the bottom menu, and Holdings.

This will open the list of all the securities in your portfolio. Choose the shares you want to sell by clicking on it and it will open a new window with BUY and SELL buttons at the bottom. Simply click on sell , enter the quantity you want to sell and the price at which you wish to sell. Market price is selected by default, you can simply enter the quantity and hit the Sell button if you want to place a market order, or define your custom price and place a limit order.

Simple, isn't it?