NATIONALMuslims in Sri Lanka to celebrate Eid al-Adha on Aug. 01 July 22, 2020July 22, 202042 Share0 (UTV | COLOMBO) – Muslims in Sri Lanka will celebrate Eid al-Adha on 01 August, the Colombo Grand Mosque announced. The Colombo Grand Mosque stated that the Crescent for the month of Dhul-Hijjah 1441 AH was not seen yesterday (21).