Construction provides employment to the largest proportion of workers from outside the state.However, robust estimates of migrant workers engaged in construction are not yet available. The sector is constituted of large scale civil engineering projects commissioned by the central and state governments, construction of malls, apartment complexes, convention centres, hospitals, factories and other major work in the private sector and construction of buildings, houses and other structures in urban and rural areas across all the 14 districts in the state. While the first two categories are undertaken by multinational or Indian infrastructure development companies, local builders take up most of the small scale constructions. Vizhinjam port, track doubling and modernisation of railway stations in Kottayam district, Kochi Metro Rail, expansion of Kochi Refinery, Kannur airport, expansion of Kochi airport, Information Technology Parks in Thiruvananthapuram and Kochi, Solar Park and Central University in Kasaragod, roads, including national highways in various districts, check dams, regulators and flyovers are some of the government commissioned construction projects in the state which engage migrant workers.
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