Those trades that you want to keep not only for a day but forever . Delivery trade(cnc) means that you have taken that share in to your demat account now it’s up to you to decide when you want to sell it . CNC mean cash and carry , if you have bought shares today, shares will get credited to your demat account day after tomorrow ( trade day + 2 working days ) . Now you are part owner of the companies share you have bought . Similarly if you want to sell this stock you just need to place an order for sell for the exact equity , however you can buy & sell the shares in different segments like NSE OR BSE . This is not trading its a kind of investment you do for the future . Margin in Delivery trade .