Engineer (Civil), Engineering Assistant (Civil) - National Water Supply and Drainage Board Engineer (Civil), Engineering Assistant (Civil) - National Water Supply and Drainage Board Engineer (Civil), Engineering Assistant (Civil) - National Water Supply and Drainage Board Engineer (Civil), Engineering Assistant (Civil) - National Water Supply and Drainage Board Engineer (Civil), Engineering Assistant (Civil) - National Water Supply and Drainage Board Engineer (Civil), Engineering Assistant (Civil) - National Water Supply and Drainage Board

Source: www.waterboard.lk (2020.07.06)