Several houses were swept away in the landslides after heavy rains lashed central Nuwara Eliya district's Kotmale area yesterday.
A two-year-old child was among seven people killed in the mudslides, police said.
Over 180 people displaced by the earth slip have been accommodated temporarily, National Disaster Management Centre officials said.
Most parts of the island are affected by bad weather and rain fall of over 100 millimeter is expected at some areas.
In the capital Colombo, several busy streets remained flooded this morning, police said.