Tender For provision of bacteriologicaltreatment of drinking water in conforming with the parameter of bureau of indian standard vide is 10500-1991 for the period of 2 ( two ) consecutive years under sse/w/bmg and operation and maintenance of pressure filter water treatment plant and automatic chlorination plant at hwh goods area for a period of 24 (twenty four) months in the section of sse/w/hwh under the jurisdiction of aen(hq)/hwh."