Methods, apparatuses, system and a related computer program product for processing policy requests are disclosed. The method comprises receiving (410) a policy request for establishment of a session for a subscriber; determining (420) if the subscriber belongs to a group subscription; verifying (430) if a binding exists between at least one policy engine among a plurality of policy engines and the group subscription, if the subscriber belongs to the group subscription; and routing (440) the policy request to the at least one policy engine based on the binding for processing the policy request if the result of verification is positive.