Providing and laying Hybrid Polyurethane and Polyurea V - Chemical water proofing membrane on roof of A Type (2 Block), S type (1-9), biren block (3 units - 17, 18, 19) hostel no. 7, 9, 10, 11, 16 slater hall, main building (CST Block & Mining Block) and external face lifting including internal finishing of top floor, renovation of toilet at all floor of CST Block and mining block of main building and renovation of electrical work of top floor CST Block & Mining block at IIEST, Shibpur, Howrah, West Bengal. SH: Restoration of the false ceiling at CHST laboratory at IIEST, Shibpur, Howrah, West Bengal.