Supply, installation, commissioning and testing of De-Fluoridation treatment plant attached to Hand pumps tube wells in different district of jharkhand as per technology and specification approved by NEERI (National environmental engineering research institute) and was under Government of Jharkhand (Department of water & sanitation department ) with three years operation and maintenance excluding one year defect liability period. First 10 units in Group D.W. & S Division were installed on pilot basis and another 90 units were installed in Garhwa D.W & S Division after satisfaction on pilot basis. The flouride removal were installed in different location within 180 days, which were identified by the Executive engineer, specification and technology was as per techniology and specification evaluated by NEERI Nagpur.