The affix ṇya comes in the sense of 'excellent with regard thereto' after the word pariṣada,
This debars यत् ॥ Thus परिषदि साधुः = पारिषद्यः ॥ The affix ण is also employed here. Thus परिषदि साधुः = पारिषदः 'one versed in the affairs of a council' 'a minister'.,