If you’ve submitted your IB ACIO form with the wrong 10th percentage, it might not get cancelled immediately, but it could create a problem later during document verification. If the difference is minor, they may just ask for clarification. But if the mistake is big or seems intentional, then yes, it can lead to rejection. It’s better to keep all your original documents ready and maybe even send a mail to the recruitment body explaining the mistake, just to be safe.