At least 400 labourers have left the textile hub of Tirrupur and to head back to their homes in North India, say industry experts, adding that a similar outflow is being reported in other industrial belts as well. While some believe the exodus has its roots in the recent of attacks on the migrant workforce, industry experts and local authorities said people are actually moving out to attend festivals such as Holi and Navratri in their hometowns and villages in the northern parts of the country. Their moving out has nothing to do with the ‘false’ attacks, the experts say.