Bus drivers wearing protective gear wait for people that arrived from the southern state of Tamil Nadu 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), at the Howrah Junction railway station on the outskirts of Kolkata, India, May 12, 2020. REUTERS/Rupak De Chowdhuri 

A police officer uses a megaphone to urge people to maintain safe distance upon disembarking from the train that arrived from the southern state of Tamil Nadu 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), at the Howrah Junction railway station on the outskirts of Kolkata, India, May 12, 2020. REUTERS/Rupak De Chowdhuri 

People look out from a train window upon arriving from the southern state of Tamil Nadu 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), at the Howrah Junction railway station on the outskirts of Kolkata, India, May 12, 2020. REUTERS/Rupak De Chowdhuri 

A police officer directs a woman to a bus that will take her to her home town upon her arrival from the southern state of Tamil Nadu in a train 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), at the Howrah Junction railway station on the outskirts of Kolkata, India, May 12, 2020. REUTERS/Rupak De Chowdhuri 

People wearing gloves wave their hands from a train upon arriving from the southern state of Tamil Nadu 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), at the Howrah Junction railway station on the outskirts of Kolkata, India, May 12, 2020. REUTERS/Rupak De Chowdhuri 

A teacher sits in an empty classroom after Tamil Nadu state government ordered the closure of primary schools across the state amid coronavirus fears, in Chennai, India, March 16, 2020. REUTERS/P. Ravikumar 

A view of an empty classroom is seen after Tamil Nadu state government ordered the closure of primary schools across the state amid coronavirus fears, in Chennai, India, March 16, 2020. REUTERS/P. Ravikumar 

Demonstrators shout slogans as they carry flags during a protest rally, organized by Tamil Nadu Thowheed Jamath, a Muslim religious group, against a new citizenship law, in Chennai, India, January 25, 2020. REUTERS/P. Ravikumar 

A girl holds a placard during a protest rally, organized by Tamil Nadu Thowheed Jamath, a Muslim religious group, against a new citizenship law, in Chennai, India, January 25, 2020. REUTERS/P. Ravikumar TPX IMAGES OF THE DAY 

A member of Tamil Nadu Disaster Response Force (TNDRF) yawns as he takes part in the full dress rehearsal for the Republic Day parade in Chennai, India, January 23, 2020. REUTERS/P. Ravikumar TPX IMAGES OF THE DAY 

A tableau from the southern state of Tamil Nadu is displayed during the full dress rehearsal for the Republic Day parade in New Delhi, India, January 23, 2020. REUTERS/Altaf Hussain 

Demonstrators carry placards as they attend a protest rally, organised by Tamil Nadu Thowheed Jamath, a Muslim religious group, against a new citizenship law, in Chennai, India, December 28, 2019. REUTERS/P. Ravikumar 

Demonstrators carry flags and placards as they attend a protest rally, organised by Tamil Nadu Thowheed Jamath, a Muslim religious group, against a new citizenship law, in Chennai, India, December 28, 2019. REUTERS/P. Ravikumar 

Demonstrators carry flags and placards as they attend a protest rally, organised by Tamil Nadu Thowheed Jamath, a Muslim religious group, against a new citizenship law, in Chennai, India, December 28, 2019. REUTERS/P. Ravikumar 

Demonstrators carry flags and placards as they attend a protest rally, organised by Tamil Nadu Thowheed Jamath, a Muslim religious group, against a new citizenship law, in Chennai, India, December 28, 2019. REUTERS/P. Ravikumar TPX IMAGES OF THE DAY 

Demonstrators shout slogans as they carry flags and placards during a protest rally, organised by Tamil Nadu Thowheed Jamath, a Muslim religious group, against a new citizenship law, in Chennai, India, December 28, 2019. REUTERS/P. Ravikumar 

Demonstrators carry flags and placards as they attend a protest rally, organised by Tamil Nadu Thowheed Jamath, a Muslim religious group, against a new citizenship law, in Chennai, India, December 28, 2019. REUTERS/P. Ravikumar 

A girl attends a protest rally, organised by Tamil Nadu Thowheed Jamath, a Muslim religious group, against a new citizenship law, in Chennai, India, December 28, 2019. REUTERS/P. Ravikumar 

Demonstrators shout slogans as they carry flags during a protest rally, organised by Tamil Nadu Thowheed Jamath, a Muslim religious group, against a new citizenship law, in Chennai, India, December 28, 2019. REUTERS/P. Ravikumar 

Muslim women shout slogans as children hold placards during a protest, organized by Tamil Nadu Thowheed Jamath, a religious group, to condemn Supreme Court's verdict on a disputed religious site in Ayodhya, in Chennai, India, November 18, 2019. REUTERS/P. Ravikumar 

Muslim women shout slogans during a protest, organized by Tamil Nadu Thowheed Jamath, a religious group, to condemn Supreme Court's verdict on a disputed religious site in Ayodhya, in Chennai, India, November 18, 2019. REUTERS/P. Ravikumar 

Muslims shout slogans during a protest, organized by Tamil Nadu Thowheed Jamath, a religious group, to condemn Supreme Court's verdict on a disputed religious site in Ayodhya, in Chennai, India, November 18, 2019. REUTERS/P. Ravikumar 

Muslim women attend a protest, organized by Tamil Nadu Thowheed Jamath, a religious group, to condemn Supreme Court's verdict on a disputed religious site in Ayodhya, in Chennai, India, November 18, 2019. REUTERS/P. Ravikumar 

Muslim women shout slogans during a protest, organized by Tamil Nadu Thowheed Jamath, a religious group, to condemn Supreme Court's verdict on a disputed religious site in Ayodhya, in Chennai, India, November 18, 2019. REUTERS/P. Ravikumar 

A Muslim woman shouts slogans during a protest, organized by Tamil Nadu Thowheed Jamath, a religious group, to condemn Supreme Court's verdict on a disputed religious site in Ayodhya, in Chennai, India, November 18, 2019. REUTERS/P. Ravikumar 

Muslim women shout slogans during a protest, organized by Tamil Nadu Thowheed Jamath, a religious group, to condemn Supreme Court's verdict on a disputed religious site in Ayodhya, in Chennai, India, November 18, 2019. REUTERS/P. Ravikumar 

A worker fills a tanker train with water, which will be transported and supplied to drought-hit city of Chennai, at Jolarpettai railway station in the southern state of Tamil Nadu, India, July 11, 2019. REUTERS/P. Ravikumar 

A technician checks a valve before water is pumped into a tanker train, which will be transported and supplied to drought-hit city of Chennai, at Jolarpettai railway station in the southern state of Tamil Nadu, India, July 10, 2019. Picture taken July 10, 2019. REUTERS/P. Ravikumar 

A worker fills a tanker train with water, which will be transported and supplied to drought-hit city of Chennai, at Jolarpettai railway station in the southern state of Tamil Nadu, India, July 11, 2019. REUTERS/P. Ravikumar 

Technicians fix valves on a pipe before water is pumped into a tanker train, which will be transported and supplied to drought-hit city of Chennai, at Jolarpettai railway station in the southern state of Tamil Nadu, India, July 10, 2019. Picture taken July 10, 2019. REUTERS/P. Ravikumar 

A worker fills a tanker train with water, which will be transported and supplied to drought-hit city of Chennai, at Jolarpettai railway station in the southern state of Tamil Nadu, India, July 11, 2019. REUTERS/P. Ravikumar 

Women shout slogans as they display placards during a protest organised by the National Federation of Indian Women (NFIW) against sexual assaults on college girls in the southern state of Tamil Nadu, in New Delhi, India, March 16, 2019. REUTERS/Anushree Fadnavis 

Women shout slogans as they display placards during a protest organised by the National Federation of Indian Women (NFIW) against sexual assaults on college girls in the southern state of Tamil Nadu, in New Delhi, India, March 16, 2019. REUTERS/Anushree Fadnavis 

Members of the transgender community shout slogans during a demonstration in Chennai supporting the people who were killed when police fired on protesters seeking closure of a copper smelting plant on environmental grounds in the town of Thoothukudi, in the southern state of Tamil Nadu, on Tuesday, during a protest in Chennai, India May 25, 2018. REUTERS/P. Ravikumar 

Demonstrators shout slogans during a protest, after at least 13 people were killed when police fired on protesters seeking closure of plant on environmental grounds in town of Thoothukudi in southern state of Tamil Nadu, in Chennai, India, May 24, 2018. REUTERS/P.Ravikumar 

Policemen stand guard ahead of a protest, after at least 13 people were killed when police fired on protesters seeking closure of plant on environmental grounds in town of Thoothukudi in southern state of Tamil Nadu, in Chennai, India, May 24, 2018. REUTERS/P.Ravikumar 

People shout slogans outisde the Tamil Nadu House during a protest, after at least 10 people were killed when police fired on protesters seeking closure of plant on environmental grounds in town of Thoothukudi in southern state of Tamil Nadu, in New Delhi, India May 23, 2018. REUTERS/Adnan Abidi 

A demonstrator displays a placard during a protest, organised by All India Democratic Youth Organisation, after at least 10 people were killed when police fired on protesters seeking closure of the plant on environmental grounds in Thoothukudi in southern state of Tamil Nadu, in Ahmedabad, India, May 23, 2018. REUTERS/Amit Dave 

Women shout slogans during a protest against the government and police forces after at least nine people were killed when police fired at protesters calling for the closure of a Vedanta Resources-controlled copper smelter in Thootukudi, in southern Indian state of Tamil Nadu, in Chennai, India, May 22, 2018. REUTERS/P.Ravikumar 

Demonstrators shout slogans as they block a road outside the venue for a cricket match in the Indian Premier League (IPL) during a protest in Chennai, capital of Tamil Nadu state, over the sharing of water from the Cauveri river with the neighbouring state of Karnataka, India, April 10, 2018. REUTERS/P. Ravikumar 

Demonstrators shout slogans as they block a road outside the venue for a cricket match in the Indian Premier League (IPL) during a protest in Chennai, capital of Tamil Nadu state, over the sharing of water from the Cauveri river with the neighbouring state of Karnataka, India, April 10, 2018. REUTERS/P. Ravikumar 

Farmers from the southern state of Tamil Nadu display skulls which they claim are the remains of Tamil farmers who have committed suicide, during a protest demanding good rates for their crops and crop insurance scheme from the government, in New Delhi, India, September 13, 2017. REUTERS/Cathal McNaughton TPX IMAGES OF THE DAY 

A farmer from the southern state of Tamil Nadu displays a skull, who he claims are the remains of Tamil farmers who have committed suicide, during a protest demanding good rates for their crops and crop Insurance scheme from the government, in New Delhi, India July 17, 2017. REUTERS/Adnan Abidi TPX IMAGES OF THE DAY 

A farmer from the southern state of Tamil Nadu rubs blood on a fellow protestors feet after deliberately cutting himself with a razor blade during a protest demanding a drought-relief package from the federal government, in New Delhi, India April 7, 2017. REUTERS/Cathal McNaughton 

Farmers from the southern state of Tamil Nadu pose half shaved during a protest demanding a drought-relief package from the federal government, in New Delhi, India April 3, 2017. REUTERS/Cathal McNaughton 

Farmers from the southern state of Tamil Nadu pose half shaved during a protest demanding a drought-relief package from the federal government, in New Delhi, India April 3, 2017. REUTERS/Cathal McNaughton 

Farmers from the southern state of Tamil Nadu pose half shaved during a protest demanding a drought-relief package from the federal government, in New Delhi, India April 3, 2017. REUTERS/Cathal McNaughton TPX IMAGES OF THE DAY 

A farmer from the southern state of Tamil Nadu poses as he bites a rat during a protest demanding a drought-relief package from the federal government, in New Delhi, India March 27, 2017. REUTERS/Cathal McNaughton TPX IMAGES OF THE DAY 

A farmer from the southern state of Tamil Nadu poses as he places a rat in his mouth during a protest demanding a drought-relief package from the federal government, in New Delhi, India March 27, 2017. REUTERS/Cathal McNaughton TPX IMAGES OF THE DAY 

A farmer from the southern state of Tamil Nadu displays skulls, who he claims are the remains of Tamil farmers who have committed suicide, during a protest demanding a drought-relief package from the federal government, in New Delhi, India March 22, 2017. REUTERS/Cathal McNaughton 

Farmers from the southern state of Tamil Nadu display skulls, who they claim are the remains of Tamil farmers who have committed suicide, during a protest demanding a drought-relief package from the federal government, in New Delhi, India March 22, 2017. REUTERS/Cathal McNaughton 

Farmers from the southern state of Tamil Nadu display skulls, who they claim are the remains of Tamil farmers who have committed suicide, during a protest demanding a drought-relief package from the federal government, in New Delhi, India March 22, 2017. REUTERS/Cathal McNaughton TPX IMAGES OF THE DAY 

A supporter of Tamil Nadu Chief Minister Jayalalithaa Jayaraman cries after visiting the Jayalalithaa’s burial site in Chennai, India, December 7, 2016. REUTERS/Adnan Abidi 

Supporters of Tamil Nadu Chief Minister Jayalalithaa Jayaraman light candles in front of her picture as they pay homage outside Jayalalithaa's burial site in Chennai, India, December 7, 2016. REUTERS/Adnan Abidi 

A supporter of Tamil Nadu Chief Minister Jayalalithaa Jayaraman mourns after visiting the Jayalalithaa’s burial site in Chennai, India, December 7, 2016. REUTERS/Adnan Abidi 

A woman cleans the floor at the burial site of Tamil Nadu Chief Minister Jayalalithaa Jayaraman in Chennai, India December 7, 2016. REUTERS/Adnan Abidi 

A supporter of Tamil Nadu Chief Minister Jayalalithaa Jayaraman cries after visiting Jayalalithaa’s burial site in Chennai, India, December 7, 2016. REUTERS/Adnan Abidi 

Supporters of Tamil Nadu Chief Minister Jayalalithaa Jayaraman stand in a queue to pay homage at the Jayalalithaa's burial site in Chennai, India, December 7, 2016. REUTERS/Adnan Abidi 

A supporter of Tamil Nadu Chief Minister Jayalalithaa Jayaraman gets her head shaved near Jayalalithaa's burial site in Chennai, India, December 7, 2016. REUTERS/Adnan Abidi TPX IMAGES OF THE DAY 

A supporter of Tamil Nadu Chief Minister Jayalalithaa Jayaraman cries after visiting the Jayalalithaa’s burial site in Chennai, India, December 7, 2016. REUTERS/Adnan Abidi