Almost all the districts of Kerala are located in the Western Ghats which is one of the bio diversity hots spots in the world. Bio diversity conservation is one of the focus areas of PDS and implements various programmes like organic farming, maintaining exotic and endangered species in herbarium, cultivation of medicinal plants through women SHGs, social forestry, etc. PDS associates with UNDP, TBGRI, Botanical Gardens Conservation International, Kerala Medicinal Plant Board, Kerala State Bio Diversity Board, KFRI, etc in implementing various bio diversity conservation programmes.