More than 800,000 people homeless after floods rip through Kerala with more rain incoming (VIDEO)

Around 800,000 people have been displaced and more than 350 have died in floods in southern India, authorities said.

Forecasters have predicted more rains across Kerala state until tomorrow morning as thousands of rescuers try to reach the stranded.

Efforts are being made to get relief supplies to isolated areas by hundreds of boats and nearly two dozen helicopters, said P.H. Kurian, a top disaster management official in Kerala.

Indian people look at a houses destroyed by a landslide at Kannapanakundu village, about 422 km north of Trivandrum, in the south Indian state of Kerala (Picture: AFP/Getty)

Railway official Milind Deouskar said two trains carrying around 1.5 million litres of water were moving to the flooded areas from the neighbouring states of Madhya Pradesh and Maharashtra.

Mr Kurian said weather conditions had improved considerably and expected the nearly 10,000 people still stranded to be rescued by Monday.

An estimated 800,000 people were sheltered in some 4,000 relief camps across Kerala, he added.

People wait for aid next to makeshift raft at a flooded area (Picture: Reuters/Sivaram V)

Rescuers waded into submerged villages in southern India on August 19 in a desperate search for survivors cut off for days by floods that have already killed more than 350 people. (Picture: STR/AFP)

An aerial view of flooded Kuttanad in Alappuzha district in Kerala (Picture: AP Photo/Charly K C)

Kerala has seen the worst flooding in a century this month after downpours started on August 8.

The heavy rainfal triggered landslides and caused homes and bridges to collapse across the state, which is known for its quiet tropical backwaters and beautiful beaches.

Officials estimate that more than 6,200 miles of roads have been damaged.

One of the state’s major airports, in the city of Kochi, was closed on Tuesday due to the flooding and is scheduled to remain closed until August 26.

The Indian government said a naval air base in Kochi will be opened for commercial flights starting on Monday morning.

India’s prime minister Narendra Modi inspected the flooded landscape from a helicopter on Saturday and met with the state’s top officials, promising more than $70 million (£54 million) in aid.

Partially submerged buidlings at a flooded area in Kerala (Picture: Reuters/Sivaram V)

While the central government has dispatched multiple military units to Kerala, state officials are pleading for additional help.

Officials have put initial storm damage estimates at nearly $3 billion.

At least 250 people have died in the flooding in a little over a week, with 31 others missing, according to Mr Kurian.

More than 1,000 people have died in flooding in seven Indian states since the start of the monsoon season, including over 350 in Kerala.

Indian citizens show placards in support of the people of Kerala during Pope Francis’ Angelus noon prayer in St. Peter’s Square at the Vatican (Picture: AP Photo/Gregorio Borgia)

People show a banner in support of the people of Kerala (Picture: AP Photo/Gregorio Borgia)