A child of a migrant worker drinks water as his mother holds him while waiting in a queue for transport to reach to a railway station to board a train to their home state of northern Uttar Pradesh, after a limited reopening of India's giant rail network following a nearly seven-week lockdown to slow the spreading of the coronavirus disease (COVID-19), in Ahmedabad, India, May 15, 2020.

Migrant workers hold a bedsheet to protect themselves from the sun on a national highway as they walk towards their home state of Uttar Pradesh, during an extended nationwide lockdown to slow the spread of the coronavirus disease (COVID-19), in Ghaziabad, in the outskirts of New Delhi, India, May 14, 2020.

Migrant workers rush with their luggage to board a Tempo which will get them across the border to their home state of Uttar Pradesh, during an extended nationwide lockdown to slow the spread of the coronavirus disease (COVID-19), in New Delhi, India, May 15, 2020.

Migrants rush to get inside a Tempo that will drive them across the border, during an extended nationwide lockdown to slow the spread of the coronavirus disease (COVID-19), in New Delhi, India, May 15, 2020.

A migrant woman cries as her and others were stopped from crossing the border, during an extended nationwide lockdown to slow the spread of the coronavirus disease (COVID-19), in New Delhi, India, May 15, 2020.

Migrant workers and their families huddle to get on a bus to a railway station to board a train to their home state of northern Uttar Pradesh, after a limited reopening of India's giant rail network following a nearly seven-week lockdown to slow the spreading of the coronavirus disease (COVID-19), in Ahmedabad, India, May 15, 2020.

A migrant worker carries her child, as they make their way across the border to their home state of Uttar Pradesh, during an extended nationwide lockdown to slow the spread of the coronavirus disease (COVID-19), in New Delhi, India, May 15, 2020.

Migrant workers, who were stranded in the western state of Rajasthan due to a lockdown imposed by the government to prevent the spread of coronavirus disease (COVID-19), wear protective masks as they look out from a window of a train upon their arrival in their home state of eastern West Bengal, at a railway station on the outskirts of Kolkata, India, May 5, 2020.

A migrant worker carries his child, as they wait to cross the border to their home state of Uttar Pradesh, during an extended nationwide lockdown to slow the spread of the coronavirus disease (COVID-19), in New Delhi, India, May 15, 2020.

Migrant workers walk along a railway track to return to their home state of eastern West Bengal, during an extended nationwide lockdown to slow the spread of the coronavirus disease (COVID-19), in Ahmedabad, India, May 11, 2020.

Migrant workers and their families wait for transport to reach a railway station to board trains to their home state of northern Uttar Pradesh, after a limited reopening of India's giant rail network following a nearly seven-week lockdown to slow the spreading of the coronavirus disease (COVID-19), in Ahmedabad, India, May 14, 2020.

Migrant workers look out from a bus as they wait to enter a railway station to board a train to reach their home state of Uttarakhand, after a limited reopening of India's giant rail network following a nearly seven-week lockdown to slow the spreading of the coronavirus disease (COVID-19), in Ahmedabad, India, May 14, 2020.

Migrants rest as they wait to cross the border to their home state of Uttar Pradesh, during an extended nationwide lockdown to slow the spread of the coronavirus disease (COVID-19), in New Delhi, India, May 15, 2020.

Migrant workers and their families wait for transport to reach to a railway station to board a train to their home state of northern state of Uttar Pradesh after a limited reopening of India's giant rail network following a nearly seven-week lockdown to slow the spreading of the coronavirus disease (COVID-19), in Ahmedabad, India, May 15, 2020.

A migrant worker carries her child, as they make their way across the border to their home state of Uttar Pradesh, during an extended nationwide lockdown to slow the spread of the coronavirus disease (COVID-19), in New Delhi, India, May 15, 2020.

Migrant workers and their families wait for transport to reach a railway station to board trains to their home state of northern Uttar Pradesh, after a limited reopening of India's giant rail network following a nearly seven-week lockdown to slow the spreading of the coronavirus disease (COVID-19), in Ahmedabad, India, May 14, 2020.

A policeman stands past migrant workers and their families waiting for transport to reach to a railway station to board trains to their home states, after a limited reopening of India's giant rail network following a nearly seven-week lockdown to slow the spreading of the coronavirus disease (COVID-19), in Ahmedabad, India, May 15, 2020.