ADDN/ ALTN TO BLDG NO T-689 & T-626, SEWAGE LINE AND PLINTH PROTECTION ALONGWITH CONNECTED B/R WK AT BLDG NO KP-08 AND PROVN OF 02 X TOILETS & 01 X BATHROOM AT 497 INT & FS UNIT AND 01 X BATHROOM IN BLDG NO P-160 AT KLP LOC OF ECIB UNDER GE (FW) KOLKA