ADDN/ ALTN TO BLDG NO SM-1, NCOS/ OR ROOM WITH CONNECTED WORKS OF ADM BR, HQ EC AND BATHROOM / TOILET, FLOOR TILING ASSOCIATE WORK BLDG NO O-6 (WATER GATE HOUSE) AND SPL REPAIR TO COOK HOUSE AT BLDG NO O-6 AND ASSOCIATED WORK AT INSIDE FORT WILLIAM UNDER GE (FW) KOLKATA