ācāryaratna - Candraśekhara; ādi - and others; yata - all; mukhya bhakta-gaṇa - chief devotees; madhye madhye - at intervals; prabhure - to Śrī Caitanya Mahāprabhu; karena nimantraṇa - gave invitations.

All the chief devotees, headed by Candraśekhara [Ācāryaratna], used to extend invitations to Śrī Caitanya Mahāprabhu periodically.