Four people have so far lost their lives in the flood that has inundated nearly 200 villages in the worst affected Jonai sub division, official sources said in Guwahati today.
The district administrations of Lakhimpur and Dhemaji have pressed motor boats into service for rescue and relief operations.
The boats belong to the districts Disaster Management authority but incessant rain has hampered rehabilitation operation.
Flood has also affected neighbouring Sonitpur district with revenue circles of Halem and Gohpur under water of the swollen Subansiri river.
Meanwhile, the swirling water of river Jiadhol has caused flash floods in parts of villages of Kechukana, Lowmunri, Misamari and Naruathan.
Food items are being supplied to the affected people by the Dhemaji district administration.