Punarnava Trust believes in permaculture, wherein the agricultural ecosystems are intended to be sustainable and self-sufficient. Rainwater harvesting is done on a large scale. Raised beds are made and the seeds are planted on them. Mulching is done using dead leaves, coconut husks and hay. The need for watering is considerably reduced as the evaporation of water is reduced due to natural mulching.
Water is also recycled with help of biogas plant. The recycled water from the settlement tank is reused in the gardens. The solid residue from the biogas plant is used as manure and the gas is used in cooking.
Natural Farming helps the Trust create jobs for the villagers, who are also served breakfast and lunch (free of cost) in addition to their wages. This therefore is a source of livelihood for the landless, poor villagers. Vaidyagrama and Balagrama also employ village locals in housekeeping, garden, kitchen departments among others.
Trust grows vegetables like okra, green chilies, tomato, tapioca, papaya, drumstick, spinach (green and red), red pumpkin, white pumpkin, bottle gourd, ridge gourd, banana, coconut are grown in the gardens. The vegetables are consumed at Vaidyagrama and are used for the community lunches.