Hello Raj,
Getting the callback URL of a Logic App in ARM template has a slight difference depending on whether it is a Logic App Standard or Logic App Consumption.
Logic App Consumption:
[listCallbackUrl(resourceId('Microsoft.Logic/workflows/triggers', parameters('workflowName'), 'manual'),'2021-03-01').value]
Logic App Standard:
[listCallbackUrl(resourceId('Microsoft.Web/sites/hostruntime/webhooks/api/workflows/triggers', parameters('logicAppName'), 'runtime', 'workflow', 'management', parameters('workflowName'), 'manual'),'2021-03-01').value]