The Purulia Pump Storage Project (PPSP), is one of the largest Pump Storage Plants in India. It is located at Ajodhya hills in the Purulia District of West Bengal. Purulia Pumped Storage Project is maintained by West Bengal State Electricity Distribution Company Ltd (WBSEDCL) formerly known as WBSEB under the ownership of the Government of West Bengal.
Fast growing trees close to buildings can cause unequal settlement when active tree roots dry out the soil causing differential soil shrinkage. Shrinking clays affect the bearing capacity and lead to movement in the building, especially in shallow foundations.