Engineer (Civil, Mechanical), Engineering Assistant (Civil, Mechanical), Project Secretary - National Water Supply & Drainage Board Engineer (Civil, Mechanical), Engineering Assistant (Civil, Mechanical), Project Secretary - National Water Supply & Drainage Board Engineer (Civil, Mechanical), Engineering Assistant (Civil, Mechanical), Project Secretary - National Water Supply & Drainage Board Engineer (Civil, Mechanical), Engineering Assistant (Civil, Mechanical), Project Secretary - National Water Supply & Drainage Board

Source: www.waterboard.lk (2026.02.12)