New delhi

Indian soldiers march during the full dress rehearsal for the Republic Day parade in New Delhi January 23, 2015. India's capital will turn into a virtual fortress for U.S. President Barack Obama's visit this weekend, with heightened security measures, including an extended no-fly zone, to protect the world's most powerful leader. Indian Prime Minister Narendra Modi, Obama and other dignitaries from the world's two largest democracies will attend India's Republic Day celebrations on January 26, which include a military parade and display of Indian weaponry. REUTERS/Adnan Abidi (INDIA - Tags: MILITARY ANNIVERSARY POLITICS)

Adnan Abidi/Reuters

Indian soldiers march during the full dress rehearsal for the Republic Day parade in New Delhi. India‘s capital will turn into a virtual fortress for U.S. President Barack Obama‘s visit this weekend, with heightened security measures, including an extended no-fly zone, to protect the world’s most powerful leader. Indian Prime Minister Narendra Modi, Obama and other dignitaries from the world’s two largest democracies will attend India’s Republic Day celebrations on Monday, which include a military parade and display of Indian weaponry.

Indian soldiers practice a march ahead of Republic Day parade in New Delhi, India, Wednesday, Jan. 21, 2015. U.S. President Barack Obama will be the "chief guest" at this year's parade, marked annually on Jan. 26.

Saurabh Das/AP

Soldiers practice ahead of the Republic Day parade in New Delhi, India, on Wednesday. US President Barack Obama will be the chief guest at the annual event.

An Indian woman crosses the road in New ...An Indian woman crosses the road in New Delhi on January 20, 2015. India is part of a global trend that is advancing towards an increasing urbanisation, with more than half of the world's population living in towns and cities. AFP PHOTO / CHANDAN KHANNAChandan Khanna/AFP/Getty Images

Chandan Khanna/AFP/Getty

A woman crosses the road in New Delhi. India is part of a global trend of increasing urbanisation, with more than half of the world’s population living in towns and cities 

A security personnel is silhouetted against the headlights of a car as he stands guard during the rehearsal of Republic Day parade on a foggy winter morning in New Delhi...A security personnel is silhouetted against the headlights of a car as he stands guard during the rehearsal of Republic Day parade on a foggy winter morning in New Delhi January 8, 2015. India will celebrate its annual Republic Day on January 26. REUTERS/Adnan Abidi (INDIA - Tags: MILITARY POLITICS SOCIETY ENVIRONMENT)

Adnan Abidi/Reuters

A security personnel is silhouetted against the headlights of a car as he stands guard during the rehearsal of Republic Day parade on a foggy winter morning in New Delhi. India will celebrate its annual Republic Day on January 26. 

Visually impaired students of a school for the blind fight for the ball during a soccer match inside their school in New Delhi

Anindito Mukherjee/Reuters

Visually impaired students at a school for the blind take part in a football match in New Delhi, India, on Monday.

Indian school children observe two-minutes of silence to pray for the victims who were killed in an attack at the Army run school in Peshawar, Pakistan, during their prayer meeting, in New Delhi, India, 17 December 2014. Nearly 140 people, the vast majority children, were killed at a military-run school in north-western Pakistan Tuesday in an attack by Islamist militants. At least 139 people including more than 125 children died before army commandos killed all six attackers and regained control of the building. Indian Prime Minister Narendra Modi condemned the terror attack and called two minutes silence in school's across the nation

Money Sharma/EPA

Schoolchildren in New Delhi, India, observe a two-minute silence on Wednesday to pray for the victims killed in the attack at an army run school in Peshawar, Pakistan

An Indian elderly man drinks tea to beat the cold early morning in old parts of New Delhi, India, Monday, Dec. 15, 2014. Cold wave conditions have intensified in the capital after scattered rains occurred in some parts of the city on Sunday, according to local reports. (AP Photo/Bernat Armangue)

Bernat Armangue/AP

An elderly man drinks tea to beat the cold early morning in old parts of New Delhi, India 

Labourers work at the construction site of a bridge being built over the river Yamuna for metro rail in New Delhi

Anindito Mukherjee/Reuters

Labourers work on a bridge being built over the river Yamuna for metro rail in New Delhi on Friday. With growth struggling at 5.3% in the July-September quarter, it is likely to be some time before India recaptures the 8% growth levels needed for an expanding workforce

People drink tea at a roadside tea shop on a winter morning in the old quarters in Delhi, December 3, 2014.

Adnan Abidi/Reuters

People drink tea at a roadside tea shop on a winter morning in the old quarters in Delhi on Wednesday

Rag pickers collect recyclable material at a garbage dump in New Delhi...Rag pickers collect recyclable material at a garbage dump in New Delhi November 19, 2014.

Ahmad Masood/Reuters

Rag pickers collect recyclable material at a garbage dump in New Delhi, India on Wednesday

Workers display their coal-covered hands for a photograph at a wholesaler in New Delhi, India, on Wednesday. Prime Minister Narendra Modi is seeking to end a four-decade-old government monopoly on mining and selling coal.

Kuni Takahashi/Bloomberg

Workers display their coal-covered hands at a wholesaler in New Delhi, India. Prime Minister Narendra Modi is seeking to end a four-decade-old government monopoly on mining and selling coal

An Indian laborer carries bundles of Marigold flowers on his head before they are distributed to different parts of the city in the morning at a whole sale market in New Delhi, India

Bernat Armangue/AP

An Indian laborer carries bundles of Marigold flowers on his head before they are distributed to different parts of the city in the morning at a whole sale market in New Delhi, India

India Fire

AP Photo/Altaf Qadri

An Indian girl rests as others try to salvage their belongings from the debris of shanties destroyed in a fire at a slum in New Delhi, India on Friday

School children dressed as Mahatma Gandhi take part in a march to mark the 145th birth anniversary of Gandhi in New Delhi

Adnan Abidi/Reuters

School children dressed as Mahatma Gandhi take part in a march to mark the 145th anniversary of the birth of Gandhi in New Delhi, India.

Tibetan exiles are detained by police during a protest outside the venue of a meeting between Chinese President Xi and Indian PM Modi in New Delhi...Tibetan exiles are detained by police during a protest outside the venue of a meeting between Chinese President Xi Jinping and Indian Prime Minister Narendra Modi in New Delhi September 18, 2014. Groups of Tibetan activists held noisy protests outside the hotel where Xi was staying in New Delhi, and at the stately Hyderabad House where he sat down for formal talks with Modi.

Adnan Abidi/Reuters

Tibetan exiles are detained by police in New Delhi during a protest outside the venue of a meeting between China’s President Xi Jinping and Narendra Modi, prime minister of India

A rag picker sorts through garbage, picking out recycable materials to sell, as birds hover and a dog sleeps at the Ghazipur landfill site in the east of New Delhi, India, on Friday, May 30, 2014. New Delhi, whose population will reach almost 21 million by 2015, generates 8,000 tons of garbage a day. Trash is not separated between organic and inorganic materials -- everything from leftover food to batteries and beverage cans goes into Indian bins -- hurting efficiency and raising toxic emissions.

Udit Kulshrestha/Bloomberg

A rag picker sorts through garbage, picking out recyclable materials to sell at the Ghazipur landfill site in the east of New Delhi, India, on Friday

An Indian man stands at the doorway of a train at a railway station in New Delhi, India, Wednesday, May 14, 2014.  Indian railway network is one of the world's largest, with some 14 million passengers daily and some 64,000 kilometers (40,000 miles) of railway track cut through some of the most densely populated cities. (AP Photo/Tsering Topgyal)

Tsering Topgyal/AP

An Indian man stands at the doorway of a train at a railway station in New Delhi, India. Indian railway network is one of the world’s largest, with some 14 million passengers daily and some 64,000 kilometers (40,000 miles) of railway track cut through some of the most densely populated cities 

A girl sits backstage after getting ready for her dance recital to celebrate International Dance Day, in New Delhi April 29, 2014. REUTERS/Adnan Abidi

Adnan Abidi/Reuters

A young ballerina watches the stage after her dance recital in New Delhi 

Indians watch a fire at a warehouse storing leftover cloth strips in New Delhi, India, Tuesday, April 29, 2014. The cause of fire is unknown. No casualties have been reported so far, according to fire officials.

Manish Swarup/AP

Bystanders watch a cloth warehouse fire in New Delhi, India on Tuesday.

A labourer sits at a window under a railway bridge in the old quarters of Delhi...A labourer sits at a window under a railway bridge in the old quarters of Delhi April 16, 2014. REUTERS/Adnan Abidi (INDIA - Tags: SOCIETY TPX IMAGES OF THE DAY)

Adnan Abidi/Reuters

A labourer sits at a window under a railway bridge in the old quarters of Delhi