Government Job Vacancies in Sri Lanka / National Water Supply and Drainage Board Job VacanciesDrilling Machine Operator – National Water Supply and Drainage Board January 31, 2021October 10, 2021 Closing Date – 2021-February-14 Here you can see the Sinhala Advertisement… ad-si-20210131-8 Sinhala AdvertisementDownloadModel ApplicationDownloadSource – Silumina (2021.01.31)