Hello @Senthilkumar Nandhakumar
Unfortunately you can only operate different cmdlets to manage GPO, but first please check the next article to understand the pre-requisites and as knowledge base for the different cmdlets available:
Then, you can use the next article as general usage:
https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/dd759177(v=ws.11)?redirectedfrom=MSDN
The powershell operations would be limited to:
-Maintain GPOs: GPO creation, removal, backup, reporting, and import.
-Associate GPOs with Active Directory Directory Services (AD DS) containers: Group Policy link creation, update, and removal.
-Set inheritance and permissions on AD DS organizational units (OUs) and domains.
-Configure registry-based policy settings and Group Policy Preferences Registry settings.
For any policy setting in specific (for instance change from Not Defined to Enabled), you will need to apply it manually from the GPMC, then you could export, link, import, etc... using powershell.
Hope this helps with your query,
--
--If the reply is helpful, please Upvote and Accept as answer--