He said he had also sent Kiren Rijiju, his deputy in the ministry, to the state for a survey of the affected areas.
“We will provide all necessary assistance to the state,” Singh told the MPs from Kerala during Zero Hour.
At least 26 people have died in the Idukki district and northern parts due to heavy rains and floods and landslides.
Two more shutters of the Cheruthoni Dam in the state, part of Idukki Reservoir were opened on Friday as the water level touched 2,401 feet.
Two more shutters of Idukki dam were also opened, increasing the water flow into Periyar river to 125 cusecs.
Ten teams of NDRF comprising 45 personnel each have been deployed in Kerala to assist in relief and rescue operations. Four more teams will be sent in view of unprecedented flood situation.
Army and Air Force are also working around the clock to assist in disaster relief and rescue operation.