(Bloomberg Businessweek) -- India’s cities are home to millions of low-skilled workers—drivers, masons, deliverymen, and others—who hail from villages hundreds of miles away. These people crowd into shantytowns and slums, scratching out a living on the margins with virtually no safety net. So when India went into lockdown in March, millions of migrant laborers found themselves out of work, penniless, and far from home. In the follow...