Why are workers from three states able to go to a considerable extent to work in West Asia?

The people from the states of Kerala, Tamil Nadu, and Andhra Pradesh are able to go to work considerably in the West Asian countries. West Asian countries are developing oil exporting countries and require workers only on a contract basis. They are mainly employed in the construction sector, markets, and transport facilities. Workers from the states are able to work in the West Asian countries because of their hard-working nature and their willpower to stay irrespective of the odds. The strong relationships that these states have with the West Asian countries also induce them to migrate there. Most of the states especially Kerala have received huge remittances resulting improvement in their standard of living. Most of them return back depending upon the working conditions in the countries.