Jagatsinghpur, Kendrapara are among the worst affected districts along with Bhubaneswar and Cuttack. 3,800 people have been shifted to safety.
The downpour also affected health services at hospitals in the city including Acharya Harihar Post Graduate Institute of Cancer (AHPGIC) where water entered the building.
The party activists led by Cuttack Nagar BJP president Lalatendu Badu staged demonstration and road blockade at different places in the city.
The low pressure system is likely to move west-northwestwards and concentrate into a depression in the subsequent 48 hours, said the IMD on Friday.
Under its influence, a low pressure area is likely to form over North and adjoining Central Bay of Bengal on Monday.
On Sunday, several parts of the State, including Nalgonda, Vikarabad, Siddipet, Suryapet and Nizamabad, recorded moderate rains.
According to the weather bulletin, a cyclonic circulation lies over southeast Arabian Sea, off north Kerala coast and extends up to 1.5 km above mean sea level.
Four vehicles, including a truck and an auto rickshaw, were damaged after a tree fell on them following heavy wind and rainfall on Friday midnight.
The state saw heavy rains in July, causing heavy damage to properties in the Malnad region and north and coastal Karnataka.
This kind of weather may prevail at many places in Bhopal, Hoshangabad, Ujjain, Indore, Gwalior and Chambal divisions.
The heavy downpour in Bengaluru over the weekend has exposed the city’s faulty infrastructure.
Following an alert signalling possible heavy rain in the next two days, the district disaster management cell has beefed up preparations to deal with any emergency situation.
Finally, the heavy downpour that was lashing several districts of Karnataka over the last three days has begun to wane to some extent.
After the Vaigai Dam’s capacity reached 68.50 cubic feet on Saturday, a second flood alert was issued by the district administration for the second time.
Roads inundated, houses and standing crops damaged due to flooding; three dead, two missing