Government Job Vacancies in Sri Lanka / National Water Supply and Drainage Board Job VacanciesHuman Resources Officer (Investigation) on Contract Basis – National Water Supply and Drainage Board October 18, 2021 Closing Date – 2021-11-01 Here you can see the English Advertisement… ad-en-20211017-18 English AdvertisementDownloadModel ApplicationDownloadSource – Sunday Observer (2021.10.17)