IMD officials said monsoon has not shown signs of withdrawal. Instead, active monsoon still prevails over parts of Rajasthan, Bihar and Uttar Pradesh.
In Bihar, heavy rains in several parts of the state since Friday have thrown normal life out of gear affecting road, rail, air traffic, healthcare facilities and schools. Rail traffic has been disrupted at several places due to overtopping of rail tracks at many places.
The weather department has forecast heavy rainfall for the city.
MeT department has also predicted torrential rains in 19 districts including Gopalganj, Purnea, Katihar Buxar.
The Patna district administration has ordered closure of all schools till Tuesday.
Meanwhile, three teams of NDRF were deployed in Patna and three more have been mobilised.
SDRF teams have also been pressed into service in districts which have received heavy rainfall. Boats have also been pressed into service for affected people.
The state government has established a State Emergency Operation Centre to coordinate with the rescue and relief work.