Assam’s flood-prone Lakhimpur and Dhemaji districts were Sunday hit by the second flood of the season following heavy rainfall in the catchment areas, officials said.

The water level of Brahmaputra’s tributaries Ranganadi and Singora was rising alarmingly with fresh areas being inundated affecting 30 villages under Lakhimpur and Naoboicha revenue circles.

The North Eastern Electricity Power Corporation released 30 cusecs of water and opened its sluice gates at the Ranganadi Hydel Power Project following a technical snag in a power grid on Saturday, they said.

This also led to fresh flooding in the two districts with the causeway of National Highway-52 near Ranganadi Bridge submerged and road communication disrupted.

The State Government has directed the district administration to provide immediate relief and rehabilitation to the affected people, the officials said.

Several districts of Upper Assam were hit by the first wave of floods in last week of March.