IEI works at NIS Tambaram. SH I: Providing 3 No 1 KVA UPS for Token Management System. SH II: Replacement of wornout obsolete SDFU type pump panel. SH III: Providing 4 No 7.5 HP Submersible Pumpsets in the UG Sump. SH IV: Renovation of Gents and Ladies toilet in Admin Block. SH V: IEI for Shed adjacent to firefighting room. SH VI: Laying Copper pipes to the existing Split AC of guest house.