He also said that Prime Minister Narendra Modi, who visited the state on Saturday, announced an assistance of 5 billion Indian rupees ($71 million) against his request for 20 billion. Hundreds of people are still stranded in Chalakuddy near Thrissur without food and water.
With no end in sight to the deluge, people all over the state of 33 million people have made panic-stricken appeals on social media for help, saying they can not make contact with rescue services.
More than 100 homes have collapsed in the last three days in the Coorg district, where Mercara is situated.
Qatar Charity urged philanthropists in Qatar to help people affected in Kerala, by providing food, medicine, medical assistance, restoring and rebuilding homes and reaching out to the victims as soon as possible.
As per the predictions of the India Meteorological Department (IMD) on Saturday afternoon, Kerala is likely to experience widespread rainfall, with heavy isolated showers in various places including Ernakulam, Pathanamthitta and Alappuzha districts. Mobile phones are not reachable.
Chengannur MLA Saji Cherian pleaded for more help and said thousands of people were stranded in houses without food and water, if immediate steps are not taken to evacuate them, their life will be in danger.
A supply truck transporting boats to flooded areas moves through a water-logged road in Aluva in the southern state of Kerala, India, August 18, 2018. "Please help", he added.
More than 300 people have died in Kerala since the monsoon started in June, including 170 since torrential rains began in August. Many people are still believed to be trapped on rooftops.More news: What made Alia Bhatt teary-eyed at Priyanka, Nick’s engagement bash?
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They are taking shelter in more than 2,000 relief camps.
India has deployed thousands of soldiers and dozens of helicopters to rescue people marooned.
Kerala is a major destination for both domestic and foreign tourists.
The global airport in the city of Kochi, one of India's busiest airports, will remain closed until August 26, airport officials said in a statement. "We're safe compared to many others, but we're cut off", said James Joseph Moolakkaat, owner of an agricultural business who lives in a 10-story building across the southwestern state's Periyar river.
At least 194 people have died in the flooding and 36 more are missing, according to Kerala's disaster management office.
"Please ask Modi to give us helicopters, give us helicopters".