UncategorizedSluice gates opened at Rajanganaya, Angamuwa and Deduru Oya reservoirs December 23, 201835 Share0 (UTV|COLOMBO) – Sluice gates are opened at Rajanganaya, Angamuwa and Deduru Oya reservoirs due to heavy rains. Old Mannar Road temporarily closed at Eluwankulama, Disaster Management Centre (DMC).