According to a report by Assam State Disaster Management Authority (ASDMA), more than 2.68 lakh people have been affected in Barpeta, Lakhimpur, Jorhat, Karimganj, Cachar, Dhemaji, Karbi Anglong and Biswanath districts.
The report said that 453 villages are currently under water and over 5,272 hectares of crop area have been damaged.
Karimganj is the worst affected with 1.53 lakh sufferers. 76,000 people have been affected in Lakhimpur, it said.
5,670 people have taken shelter at 269 relief camps in four districts set up by the authorities.