Assam State Disaster Management Authority (ASDMA) said in its flood report that more than 65,000 persons were affected in Dhemaji, Bongaigaon and Sonitpur districts.
With 40,000 persons, Bongaigaon district was the most affected followed by Dhemaji with almost 25,000 people being affected at present, it said.
More than 3,800 hectares of crop areas were under water currently, the report mentioned.
Authorities have opened four relief camps in Bongaigaon, where 2,870 persons were taking shelter.
The death toll in this year's flood in Assam has remained at five - two in Lakhimpur and one each in Bongaigaon, Baksa and Sonitpur.
At present, the Brahmaputra was flowing above the danger mark at Nematighat in Jorhat, the ASDMA added.
