An all-night Pirith chanting followed by an almsgiving to 100 members of the Maha Sangha was held at the Sri Lanka Broadcasting Corporation (SLBC) yesterday to mark its centenary celebrations under the patronage of the Anunayake of the Malwatte Chapter Most Ven. Dimbulkumbure Wimaladhamma Thera and Anunayake Thera of Asgiriya Chapter Most Ven.