Hi @Nareshkumar B,
Since your issue is about powers automate, and our forum focus on SharePoint. I am not familar with Power Automate technology, I could only share some approval document with you:
Create approval flows with attachments
If you have more complex requirements, I will recommend you to raise a new ticket in Microsoft Power Automate Community. This is a Microsoft forum dedicated to discussing Power Automate. You might get some more professional advice there. Thanks for your understanding.
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