Hi @vishnu1
Looks like this is a duplicate post (as per your original post - https://community.netapp.com/t5/Data-Backup-and-Recovery/Couldn-t-upload-custom-plug-in-file-SCCTest-zip-to-the-SnapCenter-Host-4-6/m-p/443136 _
Given no one from the community has been able to respond to the previous post or this post, I would suggest you consider opening up a support case with our SnapCenter support team so they can take a look at your issue.