HI Prashant,
You cannot replicate the Policy object from PM to CRM as there is no standard One Order Object available in CRM for policy.
If you need to display a policy object in CRM, do RFC call to Policy for that BP and get the details into a CRM assignment block.
The link which you shared CRM for Insurance is hot!!: CRM for Insurance is hot!!
also uses RFC call to PM system to get the data and display in CRM.
Regards,
Anil