Engineer (Civil), Engineering Assistant (Civil) – National Water Supply and Drainage Board July 7, 2020July 9, 2020 Applications.lk Closing Date – 2020-July-20 Sinhala AdvertisementDownloadEnglish AdvertisementDownloadWeb English AdvertisementDownloadModel ApplicationDownloadSource – Silumina (2020.07.05) | Sunday Observer (2020.07.05) Share this:TweetWhatsAppTelegram