Ramavva Lamani, an indigenous Indian woman, looks at the camera as she joins a protest by backward Hindu communities demanding equal rights in Bangalore, India, Wednesday, February 11, 2015. Ancient and deep-rooted patterns of caste discrimination in India have denied tribals and other backward communities economic, education and social rights. (Photo by Aijaz Rahi/AP Photo)

Indian laborers carry aluminum utensils to a warehouse at a wholesale market in Kolkata, India, Tuesday, February 10, 2015. Most laborers here, who are migrants from the neighboring states of Bihar and Jharkhand, live on the city's crowded pavements. (Photo by Bikas Das/AP Photo)

An Indian hand rickshaw puller transports children to school in Kolkata, India, Tuesday, February 10, 2015. Kolkata is the only city in India where hand-pulled rickshaws are still in operation. (Photo by Bikas Das/AP Photo)

A tea seller prepares tea for laborers in the old city area of New Delhi, India, Wednesday, February 11, 2015. India is the second largest tea producer in the world and the drink is the most popular hot beverage in the country. Tea production declined across the country in 2014, according to the Tea Board of India. (Photo by Bernat Armangue/AP Photo)

Indians at a shop that sells Bollywood films and music in New Delhi, India, watch on television their cricket team play Pakistan in the World Cup Pool B match at the Adelaide Oval, Sunday, February 15, 2015. The uneasy neighbors politically also have a long rivalry on the cricket field, with Pakistan leading overall in their limited-overs meetings. But defending champion India has a 100-percent record so far in their five World Cup clashes. India won Sunday's match by 76-runs. (Photo by Tsering Topgyal/AP Photo)

A man gets a haircut from a roadside barber near a dog at a market in Mumbai, February 5, 2015. (Photo by Danish Siddiqui/Reuters)

Brides arrive to take their wedding vows at a mass marriage ceremony at Bahirkhand village, north of Kolkata February 8, 2015. A total of 108 tribal Muslim and Hindu couples from various villages across the state took their wedding vows on Sunday during the day-long mass marriage ceremony organised by a social organisation, the organisers said. (Photo by Rupak De Chowdhuri/Reuters)

A bride covers her face as she waits to take her wedding vow at a mass marriage ceremony at Bahirkhand village, north of Kolkata February 8, 2015. (Photo by Rupak De Chowdhuri/Reuters)

A newly-married couple share a moment after taking their wedding vows at a mass marriage ceremony at Bahirkhand village, north of Kolkata February 8, 2015. (Photo by Rupak De Chowdhuri/Reuters)

A Hindu priest burns jute sticks as part of a ritual as a couple take their wedding vows at a mass marriage ceremony at Bahirkhand village, north of Kolkata February 8, 2015. (Photo by Rupak De Chowdhuri/Reuters)

A worker climbs up to a pillar of a metro railway under construction in Kolkata February 9, 2015. Taken at face value India will post robust quarterly growth figures on Monday, but changes in the way Asia's third largest economy is measured has left analysts and the government's own chief economic advisor doubting how far the data can be trusted. (Photo by Rupak De Chowdhuri/Reuters)

A farmer works in a bottle gourd field in Kolkata February 9, 2015. (Photo by Rupak De Chowdhuri/Reuters)

A worker carries an iron pipe inside a metal fabrication workshop in an industrial area of Mumbai February 9, 2015. (Photo by Shailesh Andrade/Reuters)

A protester holds a cross during a protest rally by hundreds of Christians against recent attacks on churches nationwide, in Mumbai February 9, 2015. Five churches in the Indian capital New Delhi have reported incidents of arson, vandalism and burglary. The latest was reported last week when an individual stole ceremonial items. (Photo by Danish Siddiqui/Reuters)

A homeless family sits next to burning garbage outside a public toilet in Mumbai February 9, 2015. (Photo by Danish Siddiqui/Reuters)

A worker fills a vacuum pipe with cotton to clean it at a cotton processing unit in Kadi town in the western Indian state of Gujarat February 9, 2015. India is expected to be the world's top cotton producer in the season to September 2015, with a likely output of 40 million bales. India's domestic cotton demand is expected to rise about 3 percent to 31.1 million bales this crop year. However, Indian firms are delaying purchases on hopes prices continue to drop, as they have been doing. (Photo by Amit Dave/Reuters)

A worker carries a sack filled with cotton at a wholesale cotton market in Agartala, capital of India's northeastern state of Tripura, in this April 16, 2014 file photo. (Photo by Jayanta Dey/Reuters)

A Hindu holy man asks for alms as he walks amongst birds flying at a beach along the Arabian Sea in Mumbai February 11, 2015. (Photo by Danish Siddiqui/Reuters)

Residents use an improvised raft to cross a sewage canal at a slum in Mumbai February 11, 2015. Residents pay 2 Indian rupees ($0.03) for a single trip. (Photo by Danish Siddiqui/Reuters)

A woman washes a tumbler next to laundry hung out to be dried in an alleyway in the southern Indian city of Bengaluru, formerly known as Bangalore, February 11, 2015. (Photo by Abhishek N. Chinnappa/Reuters)

A boy with a plastic bag over his head plays with others outside their makeshift home in New Delhi February 11, 2015. (Photo by Adnan Abidi/Reuters)

A boy pauses as he plays with others outside his makeshift home in New Delhi February 11, 2015. (Photo by Adnan Abidi/Reuters)

Students adjust hose pipes during a training session at a fire and safety college in Sikar district in the India's desert state of Rajasthan February 9, 2015. Around 30 women were recently recruited from Rajasthan's towns and villages as part of an affirmative action policy to encourage women to join the fire service. The policy reserves 33 percent of government jobs for women candidates and has helped increase the number of women in the police and administrative services but it was not implemented in the fire service until last year. (Photo by Reuters/Stringer)

A worker stacks sacks of vegetables onto a handcart at a wholesale vegetable market in Delhi February 12, 2015. Indian inflation probably rose in January as the country shifted to a new base year for calculating prices, adding more weight for services like education and health, changes that may deter the central bank from cutting interest rates soon. In India, where food accounts for nearly half of the consumer price index, policy makers fear that retail inflation could accelerate if global oil prices rebound or weak rains hurt food production. (Photo by Anindito Mukherjee/Reuters)

A worker takes a nap inside a shop selling potatoes at a wholesale vegetable market in Delhi February 12, 2015. (Photo by Anindito Mukherjee/Reuters)

Labourers roll back electric wire, which was used to provide electricity during the month-long Hindu annual religious festival of Magh Mela, on the banks of the river Ganges in the northern Indian city of Allahabad, February 12, 2015. (Photo by Jitendra Prakash/Reuters)

An aspiring model is reflected in a mirror as she walks down a runway during auditions for the upcoming Lakme Fashion Week in Mumbai February 12, 2015. The event will be held from March 18 to March 22. (Photo by Shailesh Andrade/Reuters)

An aspiring model adjusts her hair as she gets ready to be judged during auditions for the upcoming Lakme Fashion Week in Mumbai February 12, 2015. (Photo by Shailesh Andrade/Reuters)

Cooks prepare dishes to be served at a mass marriage ceremony in the western Indian city of Ahmedabad, February 15, 2015. A total of 191 Muslim couples from various parts of Ahmedabad on Sunday took wedding vows during a mass marriage ceremony organised by a Muslim voluntary organisation, organisers said. (Photo by Amit Dave/Reuters)

Muslim brides chat as they wait for the start of their mass marriage ceremony in the western Indian city of Ahmedabad, February 15, 2015. (Photo by Amit Dave/Reuters)

Muslim brides wait for the start of their mass marriage ceremony in the western Indian city of Ahmedabad, February 15, 2015. (Photo by Amit Dave/Reuters)

Muslim grooms pray after taking their wedding vows, at a mass marriage ceremony in the western Indian city of Ahmedabad, February 15, 2015. (Photo by Amit Dave/Reuters)

Muslim brides wait for the start of their mass marriage ceremony in the western Indian city of Ahmedabad, February 15, 2015. (Photo by Amit Dave/Reuters)

A Muslim bride is helped with her ornaments, before the start of a mass marriage ceremony in the western Indian city of Ahmedabad, February 15, 2015. (Photo by Amit Dave/Reuters)

Muslim brides wait for their wedding ceremonies to start during a mass marriage ceremony in Mumbai February 15, 2015. A total of 51 Muslim couples on Sunday took wedding vows during the mass marriage ceremony organised by a Muslim voluntary organisation, organisers said. (Photo by Shailesh Andrade/Reuters)

Boys play cricket in front of the Jama Masjid (Grand Mosque) early morning in the old quarters of Delhi February 17, 2015. (Photo by Ahmad Masood/Reuters)

Boys bathe at roadside municipal taps during early morning in the old quarters of Delhi February 17, 2015. (Photo by Ahmad Masood/Reuters)

People bathe at roadside municipal taps during early morning in the old quarters of Delhi February 17, 2015. (Photo by Ahmad Masood/Reuters)

Boys play cricket next to the Jama Masjid (Grand Mosque) during early morning in the old quarters of Delhi February 17, 2015. (Photo by Ahmad Masood/Reuters)

Vendors selling balloons wait for customers at a market place in the old quarters of Delhi February 17, 2015. (Photo by Ahmad Masood/Reuters)

A man boards a boat as another holding an umbrella walks on a jetty on the Dal Lake during snowfall in Srinagar February 19, 2015. (Photo by Danish Ismail/Reuters)

A goat takes a leap from one cart to another as a vendor watches at a wholesale vegetable market in the old quarters of Delhi February 19, 2015. (Photo by Adnan Abidi/Reuters)

Workers load liquefied petroleum gas (LPG) cooking cylinders onto a supply truck outside a distribution centre in Mumbai in this February 19, 2015 file photo. India may slash its food and fuel subsidy bill by about $8 billion in next week's budget, two sources said, but despite the impressive headline, the cut is not as radical as free market champions had hoped for in Prime Minister Narendra Modi's first full budget. (Photo by Shailesh Andrade/Reuters)

Brides wait for the start of a mass wedding ceremony in the old quarters of Delhi February 20, 2015. A total of 12 couples took their wedding vows on Friday during the mass wedding ceremony organised by a Hindu religious organisation, an organiser said. (Photo by Ahmad Masood/Reuters)

A bride gets ready during a mass wedding ceremony in the old quarters of Delhi February 20, 2015. (Photo by Ahmad Masood/Reuters)

Workers pull a rope attached to an underground electric cable along the roadside in New Delhi February 20, 2015. (Photo by Anindito Mukherjee/Reuters)

An emblem of a 1940 Buick car is pictured during a vintage car rally in front of the historic Red Fort in the old quarters of Delhi February 21, 2015. More than 200 vehicles took part in the vintage and classic car rally on Saturday. (Photo by Adnan Abidi/Reuters)

A participant drives his 1960 Buick car during a vintage car rally in front of the historic Red Fort in the old quarters of Delhi February 21, 2015. (Photo by Adnan Abidi/Reuters)

Participants drive their cars during a vintage car rally in front of the historic Red Fort in the old quarters of Delhi February 21, 2015. (Photo by Adnan Abidi/Reuters)

A participant stands next to her 1933 Rolls Royce during a vintage car rally in front of the historic Red Fort in the old quarters of Delhi February 21, 2015. (Photo by Adnan Abidi/Reuters)

A participant fills petrol in his 1923 Rover car before the start of a vintage car rally in front of the historic Red Fort in the old quarters of Delhi February 21, 2015. (Photo by Adnan Abidi/Reuters)

Indian rescued child laborers sit inside a train to be reunited with their parents in Bihar, one of India's poorest states, at a railway station in Hyderabad, India, Thursday, February 5, 2015. Police have rescued hundreds of children working in hazardous industries in a southern Indian city despite laws that ban child labor. In a series of raids on leather tanning and plastic factories in Hyderabad over the past 10 days, police rescued at least 350 children. (Photo by Mahesh Kumar A./AP Photo)

Indian rescued child laborers stand in a queue to board a train to be reunited with their parents in Bihar, one of India's poorest states, at a railway station in Hyderabad, India, Thursday, February 5, 2015. (Photo by Mahesh Kumar A./AP Photo)

An Indian man prepares flatbread in the old city area of New Delhi, India, Wednesday, February 11, 2015. Old Delhi was founded by Mughal Emperor Shah Jahan in the 17th Century. (Photo by Bernat Armangue/AP Photo)

In this October 17, 2014, file photo, a thick blanket of smoke is seen against the setting sun as young ragpickers search for reusable material at a garbage dump in New Delhi, India. India's filthy air is cutting 660 million lives short by about three years, while nearly all of the country's 1.2 billion citizens are breathing in harmful pollution levels, according to research published Saturday, February 21. While New Delhi last year earned the dubious title of being the world's most polluted city, the problem extends nationwide, with 13 Indian cities now on the World Health Organization's list of the 20 most polluted. (Photo by Altaf Qadri/AP Photo)

An Indian labourer loads unbaked clay bricks on a horse-drawn cart to deliver them to a brick kiln in Sahibabad on the outskirts of New Delhi on February 20, 2014. (Photo by Prakash Singh/AFP Photo)

A cart puller carries goods at night in New Delhi, India on Wednesday, November 26, 2014. Thousands of people come to Delhi every year to work odd jobs like pulling carts, then go back home to help their families' small farms at harvest time. (Photo by Saurabh Das/AP Photo)

Indian devotees travel on a ferry to Umananda, left, a river island in the Brahmaputra that houses a Shiva temple, during Shivratri festival in Gauhati, India, Tuesday, February 17, 2015. Shivratri, or the night of Shiva, is dedicated to the worship of Lord Shiva, the Hindu god of destruction. (Photo by Anupam Nath/AP Photo)

An Indian man prepares flatbread in the old city area of New Delhi, India, Wednesday, February 11, 2015. Old Delhi, founded by Mughal Emperor Shah Jahan in the 17th Century, is today a dilapidated version of its former glory when it was the capital city of the Mughals and filled with mosques, gardens, mansions of nobles and members of the royal court. (Photo by Bernat Armangue/AP Photo)

An Indian passer-by feeds an elephant, which is hired for weddings and parties, on the banks of the river Yamuna in New Delhi on February 6, 2015. (Photo by Money Sharma/AFP Photo)