A protester attends a protest against the Citizenship Amendment Bill, that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in New Delhi, India, December 14, 2019. REUTERS/Adnan Abidi

Protesters shout slogans during a protest against the Citizenship Amendment Bill, that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, inside the Jamia Millia Islamia University in New Delhi, India, December 14, 2019. REUTERS/Adnan Abidi

Protesters shout slogans during a protest against the Citizenship Amendment Bill, that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in New Delhi, India, December 14, 2019. REUTERS/Adnan Abidi

Protesters hold placards during a protest against the Citizenship Amendment Bill, that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in New Delhi, India, December 14, 2019. REUTERS/Adnan Abidi

Protesters hold placards during a protest against the Citizenship Amendment Bill, that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in New Delhi, India, December 14, 2019. REUTERS/Adnan Abidi TPX IMAGES OF THE DAY

Protesters shout slogans during a protest against the Citizenship Amendment Bill, that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in New Delhi, India, December 14, 2019. REUTERS/Adnan Abidi

Protesters shout slogans during a protest against the Citizenship Amendment Bill, that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, inside the Jamia Millia Islamia University in New Delhi, India, December 14, 2019. REUTERS/Adnan Abidi

Protesters hold placards during a protest against the Citizenship Amendment Bill, that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in New Delhi, India, December 14, 2019. REUTERS/Adnan Abidi

People carry a gas cylinder after their shop was set on fire during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, on Wednesday night in Gomati district in the eastern state of Triupura, India, December 13, 2019. REUTERS/Jayanta Dey

People offer Friday prayer in front of a banner before the start of a protest march against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Kolkata, India December 13, 2019. REUTERS/Rupak De Chowdhuri

Protesters run for cover amid tear gas fired by police during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, outside the Jamia Millia Islamia University in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

A policeman throws a stone towards protestor during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, outside the Jamia Millia Islamia University in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

A protestor kicks a tear gas shell during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, outside the Jamia Millia Islamia University in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

Protesters run for cover amid tear gas fired by police during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, outside the Jamia Millia Islamia University in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

Protestors shout slogans during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, outside the Jamia Millia Islamia University in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

Protestors shout slogans during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, outside the Jamia Millia Islamia University in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

Protestors shout slogans during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, outside the Jamia Millia Islamia University in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

A police officer fires a tear gas shell towards protestors during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, outside the Jamia Millia Islamia University in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

Protestors throw stones towards police during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, outside the Jamia Millia Islamia University in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

Protestors shout slogans as they stand amidst the tear gas during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, outside the Jamia Millia Islamia University in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

A protestor throws a stone towards police during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, outside the Jamia Millia Islamia University in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

Police officers chase protestors during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, outside the Jamia Millia Islamia University in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

A police officer throws a stone towards protestors during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, outside the Jamia Millia Islamia University in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

Stones are seen on the road during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, outside the Jamia Millia Islamia University in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

A protestor holds a stick during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, outside the Jamia Millia Islamia University in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

Police and protestors scuffle outside the Jamia Millia Islamia University during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

Police detain a protester outside Jamia Millia Islamia University during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi TPX IMAGES OF THE DAY

A police officer fires a teargas shell towards protestors during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, outside the Jamia Millia Islamia University in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

A police officer runs for cover as protestors throw stones outside Jamia Millia Islamia University during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in New Delhi, India, December 13, 2019. REUTERS/Adnan Abidi

People hold placards and shout slogans during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Mumbai, India December 13, 2019. REUTERS/Francis Mascarenhas

A boy holds a placard during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Mumbai, India December 13, 2019. REUTERS/Francis Mascarenhas

A boy holds a placard during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Mumbai, India December 13, 2019. REUTERS/Francis Mascarenhas

Demonstrators burn a copy of Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, during a protest in New Delhi, India, December 12, 2019. REUTERS/Anushree Fadnavis

Demonstrators shout slogans during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in New Delhi, India, December 12, 2019. REUTERS/Anushree Fadnavis

Demonstrators shout slogans during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in New Delhi, India, December 12, 2019. REUTERS/Anushree Fadnavis

Members of the youth wing of India's main opposition Congress party burn a copy of Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, during a protest in New Delhi, India December 11, 2019. REUTERS/Adnan Abidi

Members of the youth wing of India's main opposition Congress party shout slogans during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in New Delhi, India December 11, 2019. REUTERS/Adnan Abidi

Members of the youth wing of India's main opposition Congress party burn a copy of Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, during a protest in New Delhi, India December 11, 2019. REUTERS/Adnan Abidi

A woman holds a placard during a silent protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Mumbai, India, December 11, 2019. REUTERS/Francis Mascarenhas

Supporters of India's main opposition Congress party shout slogans during a protest against the Citizenship Amendment Bill (CAB), a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Ahmedabad, India, December 11, 2019. The placard reads: "Save Bharat (India) from divisive BJP" REUTERS/Amit Dave

Supporters of India's main opposition Congress party carry a cutout depicting India's Home Minister Amit Shah during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in New Delhi, India, December 11, 2019. REUTERS/Anushree Fadnavis

Police chase away demonstrators during a protest against Citizenship Amendment Bill (CAB), that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Guwahati, India, December 11, 2019. REUTERS/Anuwar Hazarika

Police use water cannon to disperse demonstrators during a protest against Citizenship Amendment Bill (CAB), that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Guwahati, India, December 11, 2019. REUTERS/Anuwar Hazarika

Demonstrators shout slogans during a protest against Citizenship Amendment Bill (CAB), that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Guwahati, India, December 11, 2019. REUTERS/Anuwar Hazarika

Demonstrators shout slogans during a protest against Citizenship Amendment Bill (CAB), that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Guwahati, India, December 11, 2019. REUTERS/Anuwar Hazarika

Police officers try to detain demonstrators during a protest against the Citizenship Amendment Bill, that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Agartala, India, December 11, 2019. REUTERS/Jayanta Dey TPX IMAGES OF THE DAY

Police detain a demonstrator during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in New Delhi, India, December 11, 2019. REUTERS/Adnan Abidi

Demonstrators burn copies of Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, during a protest in New Delhi, India, December 11, 2019. REUTERS/Adnan Abidi

Demonstrators shout slogans during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in New Delhi, India, December 10, 2019. REUTERS/Adnan Abidi

Demonstrators burn copies of Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, during a protest in New Delhi, India, December 10, 2019. REUTERS/Adnan Abidi

Demonstrators shout slogans during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in New Delhi, India, December 10, 2019. REUTERS/Adnan Abidi

Students display placards as they attend a protest against the National Register of Citizens (NRC) and the Citizenship Amendment Bill (CAB), a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Kolkata, India, December 10, 2019. REUTERS/Rupak De Chowdhuri

Students prepare placards before attending a protest against the National Register of Citizens (NRC) and the Citizenship Amendment Bill (CAB), a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Kolkata, India, December 10, 2019. REUTERS/Rupak De Chowdhuri

A police officer holds a tear gas gun during a protest against Citizenship Amendment Bill (CAB), a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Guwahati, India, December 10, 2019. REUTERS/Anuwar Hazarika

A student displays a placard during a protest against the National Register of Citizens (NRC) and the Citizenship Amendment Bill (CAB), a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Kolkata, India, December 10, 2019. REUTERS/Rupak De Chowdhuri

Activists of Socialist Unity Centre of India (SUCI) hold placards during a protest against the National Register of Citizens (NRC) and the Citizenship Amendment Bill (CAB), a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Kolkata, India, December 10, 2019. REUTERS/Rupak De Chowdhuri

Demonstrators shout slogans during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Agartala, India, December 10, 2019. REUTERS/Jayanta Dey

A policeman removes burning tires set ablaze by demonstrators during the strike to protest against Citizenship Amendment Bill (CAB), a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Guwahati, India, December 10, 2019. REUTERS/Anuwar Hazarika

A demonstrator reacts as she is detained by police during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, in Agartala, India, December 10, 2019. REUTERS/Jayanta Dey

Demonstrators shout slogans during a protest against the Citizenship Amendment Bill, a bill that seeks to give citizenship to religious minorities persecuted in neighbouring Muslim countries, and National Register of Citizens (NRC), in Kolkata, India, December 9, 2019. REUTERS/Rupak De Chowdhuri