President Maithripala Sirisena offered the first day cover made to celebrate the birthday of most Ven. Aggamaha Panditha Dawuldena Gnanissara Mahanayake Thera of the Sri Lanka Amarapura Maha Sangha Sabha this morning. An event was held at the BMICH to felicitate the Mahanayaka Thera was attended by a number of Maha Sangha representing all three chapters. Former President Mahinda Rajapaksa was also present at the event.