The government also waived off stamp duty and registration fee for land purchased under the Life Mission scheme.
The great deluge that devastated the state in August last year and the harsh summer that followed have helped to create a consciousness among the Keralites on the need to plant more trees.
Schools have closed in Kyela, a district on the border of Lake Malawi, and families fled to shelters after losing everything in the rising waters.
The Chief Minister also held a series of meetings with Dutch experts in water management.
P A Santhamma, deputy director of education, said the achievement was unique as large-scale damage was caused by the floods, which also washed away the textbooks and other educational materials.
The reason for a weak disaster management system in the state is attributed to the less vulnerability of cyclones or earthquakes.
Officials in a meeting suggested a location near Jakarta or staying put and relocating all government buildings to a special zone around the presidential palace.
The UN Office for the Coordination of Humanitarian Affairs (OCHA) described it as the strongest cyclone to ever lash the continent and predicted further heavy rain over the coming days.
Around 12,000 others have been evacuated from water-logged Bengkulu province with hundreds of buildings, bridges and roads damaged.
The waters have receded in some places but officials warned the full extent of the damage was not yet known and some areas were still cut off.
Kalamassery MLA V K Ibrahim Kunju inaugurated the function, which was presided over by Francis Tharayil, president, Kunnukara grama panchayat.
With the scorching summer due to make way for soothing rain soon, residents of low-lying areas hope for the best, while preparing for the worst; civic body says plans are in place to avoid Bengaluru g
The South African Weather Services warned that more heavy rain and gale force winds were expected until Wednesday, which could threaten low-lying bridges and roads.
It says EAP is the document to be used in case of emergencies generated by either a dam break or to a significantly high release of water from gated or ungated spillways.
Residents have complained about the lack of infrastructure and government assistance to help them out of the deluge.