ratha-yātrā-dine prabhu kīrtana ārambhilā
pūrvavat sāta sampradāya pṛthak karilā
ratha-yātrā-dine - on the day of the car festival;prabhu - Śrī Caitanya Mahāprabhu;kīrtana ārambhilā - began the congregational chanting;pūrva-vat - as previously;sāta sampradāya - in seven groups;pṛthak karilā - He divided.