A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
Hi! SHANKAR KERTHANA, Welcome to the Microsoft Community!I realize that you've encountered a problem with want to recover PowerPoint slideshow from ipad and I understand how you feel. Sorry, according to the description you provided, you have exited PowerPoint after deleting the slides and you have not synchronized the file via OneDrive, so we have no way to help you retrieve those deleted slides.
I know how you feel, if you subscribe to Microsoft 365, you can turn on auto-save when editing your PPTs using the Windows client or the Mac client, which can help you avoid this problem. When auto-save is turned on, Word, Excel, and PPT will synchronize your documents to the OneDrive cloud at short intervals, so you won't lose your edits. For more information about AutoSave, please refer to the link: How do I turn on AutoSave? - Microsoft Support Thank you for your understanding and patience. Best Regards Eddy - MSFT | Microsoft Community Support Specialist