Watershed Development Management (WDM) Programme has given to PDS a new enlightenment. The Society holds the distinction of introducing the concept in this part of the country in early 90’s with the help of EEC. As far as WDM is concerned, the Society assumes the roles of promoter, programme implementing agency, support voluntary organization and resource centre. It is one of the Support Voluntary Organizations (SVO) of CAPART for the promotion of watershed development programme in South India. PDS has also implemented 12 watershed development programmes in 32000 ha of land in Kerala with the support of CAPART, ministry of rural development, Kerala Planning Board, etc.