I am looking for AZURE AD Graph API to check whether a user is locked and if locked i need to unlock that particular user using Graph API.
Also I have verified the AZURE AD Graph API catalogs mentioned below but i cannot able to find anything related to it.
https://msdn.microsoft.com/en-us/library/azure/ad/graph/api/api-catalog
You cannot unlock a user account. See https://docs.microsoft.com/en-us/azure/active-directory/active-directory-passwords-policy for details of how account lockout duration is calculated by default.
if you have configured smart lockout policies, user remains locked based on the lockout duration specified in https://docs.microsoft.com/en-us/azure/active-directory/connect/active-directory-aadconnect-pass-through-authentication-smart-lockout