Not getting Postback (WebHooks) for MIS orders at 3.20 PM when Kite close all MIS orders.

I am able to get postback for all orders which is executed from api_key. In this postback Im getting proper Status of order. But wanted to know how my system will able to know if any MIS orders is exited form Kite? I also checked in postback logs in my system but I am not getting postback at 3.20 PM as it was exited from Kite.
Please give a solution to this so that I can able to track the positions of stocks properly at my system.

Thank you
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