Business Manager – Center of Ewcellence for Water and Sanitation (cewas) On Contract Basis – National Water Supply and Drainage Board January 2, 2022January 2, 2022 Applications.lk Closing Date – 2022-01-17 English Advertisement Preview ad-en-20220102-4 English AdvertisementDownloadModel ApplicationDownloadSource – Sunday Observer (2022.01.02) Share this:TweetWhatsAppTelegram