Over 20,000 people have been shifted to 68 relief camps so far, with floods affecting 15 lakh people across 25 districts in the state. Barpeta is the worst-hit, with over five lakh people displaced.

However, the situation worsened as the day wore on, with heavy rainfall lashing the state and neighbouring Meghalaya in line with predictions by the India Meteorological Department. Further rainfall is expected in the next 48 hours.

Chief Minister Sarbananda Sonowal briefed Union Home Minister Amit Shah on the floods in a phone conversation earlier today. Mr Shah also chaired a high-level meet to review the situation in Assam and other rainfall-hit states across the country.

State authorities said they are doing everything possible to ensure the safety of the people. Round-the-clock control rooms have been set up to respond to calls for help.

Water levels of 10 rivers in the state, including the stretch of the Brahmaputra flowing through Guwahati, have crossed the danger mark.

Ferry services across the state have been halted since Friday to prevent accidents due to the strong water currents in rivers flowing across the northeastern state.

Over 70 per cent of the Kaziranga National Park has been submerged in the floods. The animals have taken shelter on platforms constructed for their safety during the floods, officials said.

Dhemaji and Lakhimpur in tea-rich Upper Assam and Bongaigaon and Barpeta in Lower Assam were also badly hit. Officials fear that the flow of floodwater from higher areas will further rise, making things worse in the Lower Assam region.

Agricultural activities in the state also received a massive setback, with over 27,000 hectares of farmland getting inundated until yesterday. Further updates are awaited.