Hi @Anandhan Sathyanarayanan ,
Are you using SharePoint Online?
You could enable site classification in your tenant. To enable the site classification capability, you can execute PowerShell code like the following sample.
# Install the Azure AD Preview Module for PowerShell
Install-Module AzureADPreview
# Connect to Azure AD
Connect-AzureAD
# Create new directory setting and set initial values
$template = Get-AzureADDirectorySettingTemplate | where { $_.DisplayName -eq "Group.Unified" }
$setting = $template.CreateDirectorySetting()
$setting["UsageGuidelinesUrl"] = "https://aka.ms/sppnp"
$setting["ClassificationList"] = "HBI, MBI, LBI, GDPR"
$setting["DefaultClassification"] = "MBI"
New-AzureADDirectorySetting -DirectorySetting $setting
While in the following figure, you can see the classification highlighted in the header of a "modern" site.
For Reference: SharePoint "modern" sites classification
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.