GENERAL-PWD - College Of Engineering - Balance work of flat type apartment for the Staff of College of Engineering Trivandrum - Phase 2-Civil work-Composite Work In this phase, the remaining structural works i.e., column raising for the 2nd floor, 2nd-floor roof slab (General roof slab), and tower room,are included. The finishing works of the GF,FF, and SF, terrace roofing, road formation, and sump tank.