You will know your order status  during the Order Matching Session (which lasts for 15 minutes) during which the opening price is determined and trades are executed.

Say, you have placed an order in session 1 (between order entry time: 9:30 am - 10:15 am). The  trade confirmation shall take place in the matching session (10:15 am - 10.30 am). Please note that all unmatched orders are cancelled by the Exchange and NOT carried forward to the next PCAS.