Eid ul-Fitr is a Muslim holiday celebrated when Ramadan , the month of fasting , finishes . Muslims do not fast on Eid ul-Fitr as it is not allowed . In Bangladesh , Sholakia is a locality famous for its Eidgah where the largest congregation of Eid prayer of the country is held on the occasion of Eid ul-Fitr , the day of celebration after the fasting month of Ramadan .