According to Assam State Disaster Management Authority (ASDMA), the affected villages fell in three districts -- Dhemaji, Chirang and Lakhimpur.
Nearly 1.05 lakh people have been affected so far after about 400 villages were submerged in 11 districts across the state.
The first wave of flood this season since June has claimed one human life in Morigaon district. An elephant and an antelope were also washed away in Nagaon district near Kaziranga National Park in Golaghat district.
The flood has also affected Pobitora Wildlife Sanctuary.
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As per ASDMA data, eight relief camps have come up in Dhemaji and Chirang districts with about 2,500 people sheltered there.
Heavy rainfall in the catchment areas of neighbouring Arunachal Pradesh has caused river Jiadhol to rise and submerge fresh areas in worst-hit Dhemaji district.
Besides, 6,000 hectares of agricultural land have been submerged with standing crops like rice being destroyed.
Meanwhile, the mighty Brahmaputra at Nematighat in Jorhat district, Burhidehing at Khowang in Dibrugarh district, Desang at Nanglamuragat in Sibsagar and Jia Bharali at N T Road Crossing in Sonitpur were flowing above the danger level.