Hi @SHIVAKUMAR Madhurashree K (Madhura)
Thanks for your offline time.
As discussed, we have installed the Az cmdlets on the hybrid worker and found the configuration issue. The machine was logged in with User A credentials and Runbook was triggered using User B(who has the required Subscription) credentials with which the Azure portal was logged in.
After setting in Azure Portal, Hybrid Workers group settings to use User A (with which machine is logged In), resolved the issue.