Section 2(5)(q) in The Tamil Nadu Building and Construction Workers (Conditions of Employment and Miscellaneous Provisions) Act, 1984
(q)"work of engineering construction" means the construction of any railway line or siding otherwise than upon an existing railway, the construction, structural alteration or repair, maintenance and laying of foundation or demolition of any tramway dock, harbour, canal, dams and ancillary works including river valley projects, tanks and water courses, inland navigation, dam, tunnel, bridge, viaduct water works, reservoir pipeline, aqueduct sewer, sewage works, river works, private air fields, sea defence works, gas works and any steel or reinforced concrete structure other than a building, or any other civil or constructional engineering work of a nature similar to any of the foregoing work or operation connected with the installation of machinery, but does not include-