KOCHI, INDIA (AFP) - The death toll from devastating floods in the southern Indian state of Kerala rose to 445 on Sunday (Aug 26) with the discovery of 28 more bodies as the waters recede and a massive clean-up gathers pace, government officials said.

Around a million people are still packed into temporary relief camps and 15 are reported missing even as the government mounts an operation to clean homes and public places that have been filled with dirt and sand left by the floods.

Kerala Chief Minister Pinarayi Vijayan said in a tweet that more than 130,000 flood-hit houses had been cleaned, or nearly a third of those affected.

The authorities are also in the process of restoring electricity connections.

People returning to their homes have been told to stay alert as receding waters leave behind a glut of snakes. State authorities and wildlife experts have formed teams to come to the aid of those who have found snakes in their home, according to local media.

With death toll rising daily, Kerala authorities said "due process will be followed to ascertain if all these deaths are flood related".

A 68-year-old man committed suicide last Wednesday after seeing the state of his home at Kothad in Ernakulam district.

A 19-year-old boy took his own life earlier in the week because his school certificates were destroyed by the floods, police said.

The government says that more than 10,000km of roads have been destroyed or damaged, while a legislator said 50,000 houses had been wiped out.