Bankura district is located in Southern part of West Bengal; district is drought prone and due to undulating, lateritic, and porous soil moisture content at subsoil level is low. Fluctuating rainfall with intermittent drought spell between two successive rainfalls badly affects Kharif crop in terms of yield. In view of this, marginal and small farmers demand for excavation of small tank locally known as hapa in their agricultural land for conserving of water. And field study reveals that thousands of hapa have been excavated on individual land of farmers. In addition, many years ago (century ago) 7-8 farmers by forming informal group excavated big tank (pond) in the land of one medium farmer and water was used for cultivation by all. The process started in great grandfathers’ period but water is used by generations together. One such case is pretended here where altogether seven members were involved.