Migrant workers line up to board buses for their onward journey by train to their home states, at Dharavi, one of Asia's largest slums, in Mumbai, India, Friday, May 22, 2020. India's lockdown was imposed on March 25 and has been extended several times. On May 4, India eased lockdown rules and allowed migrant workers to travel back to their homes, a decision that has resulted in millions of people being on the move for the last two weeks. (AP Photo/Rafiq Maqbool)