Simplex present in this sector since 1965 Infrastructure demands of modern cities have been changing rapidly. Road, rail and airport infrastructure needs to be upgraded; hospital, schools and stadiums must be built; and utilities ranging from urban water supply and sewerage to mass transport have to be revamped. Simplex undertakes the full range of urban infrastructure construction including complex metro rail projects in busy urban agglomerates. Urban utilities comprises of construction and development of sewerage and water systems, metro rails and airports.