Rivers like Narmada, Betwa and Tawa were in spate.
The rains have severely affected the telephone lines and communication between Vidisha and Ashoknagar, and Bhopal and Sagar remained cut-off, official sources said.
Police said a man was killed and five others sustained injuries when a wall of their house collapsed in the Old City area of Bhopal last evening.
Water gushed inside many houses in the low-lying areas of the city.
A fear of drought hovered over the state a fortnight back, which has now changed into a flood-like situation owing to heavy rainfall.
According to Met department, there will be no respite from the heavy downpour in the next two days.
