A salt plant, in Tutcorin,Tamilnadu, India. ????Distressed Seasonal Migrant Workers????, usually work in such plants. Due to drought and lack of alternative works in their native villages, families are forced to migrate for three to six months in search of work. About 10 to 30 million people migrate to a range of industrial and agro-industrial sectors such as brick manufacture, salt making, sugar cane harvesting, stone quarrying, and construction. Children accompany their parents. As a result drop-out of school rates go up. July 28, 2007.