I have five pages in Site.But i want give access to User Particular Page only

You have to set the visibility of the pages according to the requirement. Go to site-> go to particular page and set the visibility creteria.

Pls correct me  if i am wrong 

• In edit Page, Go to Visibility, there are two options Always Show and Only Show when
• Select Only Show when - This Page is only Visible when the expression evaluates to true
• In the expression, need to write loggedInUser ()=”AAAA”  

Correct.

Thank you ji

Thank you ji