India's Prime Minister Narendra Modi (L) and U.S. President Barack Obama watch India's Republic Day parade from behind rain streaked bullet proof glass as they stand in the rain together in New Delhi January 26, 2015. (Photo by Jim Bourg/Reuters)

A military marching band riding camels performs in India's Republic Day parade in New Delhi January 26, 2015. (Photo by Jim Bourg/Reuters)

An Indian security officer guarding India's Prime Minister Narendra Modi and U.S. President Barack Obama keeps his weapon at the ready as he watches the crowd at the Republic Day parade in New Delhi January 26, 2015. (Photo by Jim Bourg/Reuters)

An all female Indian military contingent marches in the Republic Day parade in New Delhi January 26, 2015. (Photo by Jim Bourg/Reuters)

Members of the security team protecting India's Prime Minister Narendra Modi and U.S. President Barack Obama guard the VIP stand as the leaders watch the Republic Day parade in New Delhi January 26, 2015. (Photo by Jim Bourg/Reuters)

Indian Navy sailors watch as military vehicle parades past during India's Republic Day parade in New Delhi January 26, 2015. (Photo by Jim Bourg/Reuters)

An armed Indian military regiment riding camels march in India's Republic Day parade in New Delhi January 26, 2015. (Photo by Jim Bourg/Reuters)

India's Border Security Force (BSF) soldiers march during a Republic Day parade in the northeastern Indian city of Agartala January 26, 2015. India celebrated its 66th Republic Day on Monday. (Photo by Jayanta Dey/Reuters)

Indian policemen march during a Republic Day parade in Srinagar January 26, 2015. (Photo by Danish Ismail/Reuters)

Schoolgirls perform during a Republic Day celebrations in the northeastern Indian city of Agartala January 26, 2015. (Photo by Jayanta Dey/Reuters)

An Indian policeman performs a stunt during the Republic Day parade in Jammu January 26, 2015. (Photo by Mukesh Gupta/Reuters)

An Indian policeman performs a stunt on his motorcycle during the Republic Day parade in Jammu January 26, 2015. (Photo by Mukesh Gupta/Reuters)

An Indian policeman performs a stunt on his motorcycle during the Republic Day parade in Jammu January 26, 2015. (Photo by Mukesh Gupta/Reuters)

Police women march during a Republic Day parade in the northern Indian city of Chandigarh January 26, 2015. (Photo by Ajay Verma/Reuters)

Member of the Indian Border Security Force (BSF) ride their camels as they take part in the Republic Day parade in New Delhi January 26, 2015. (Photo by Ahmad Masood/Reuters)

A member of the Indian Border Security Force (BSF) band rides his camel as he performs during the Republic Day parade in New Delhi January 26, 2015. (Photo by Ahmad Masood/Reuters)

India's Border Security Force (BSF) “Daredevils” motorcycle riders perform stunts as they take part during the Republic Day parade in New Delhi January 26, 2015. (Photo by Ahmad Masood/Reuters)

Indian soldiers march during the Republic Day parade in New Delhi January 26, 2015. (Photo by Ahmad Masood/Reuters)

Indian soldiers march during the Republic Day parade in New Delhi January 26, 2015. (Photo by Ahmad Masood/Reuters)

Indian Army's Pinaka multi barrel rocket launcher systems are displayed during the Republic Day parade in New Delhi January 26, 2015. (Photo by Adnan Abidi/Reuters)

Indian soldiers march during the Republic Day parade in New Delhi January 26, 2015. (Photo by Ahmad Masood/Reuters)

Artists wearing masks perform as they take part in the Republic Day parade in New Delhi January 26, 2015. (Photo by Ahmad Masood/Reuters)

India's Border Security Force (BSF) “Daredevils” motorcycle riders take part during the Republic Day parade in New Delhi January 26, 2015. (Photo by Adnan Abidi/Reuters)

Artists perform as they take part in the Republic Day parade in New Delhi January 26, 2015. (Photo by Ahmad Masood/Reuters)

A float is on display during the Republic Day parade in New Delhi January 26, 2015. (Photo by Ahmad Masood/Reuters)

A float is on display during the Republic Day parade in New Delhi January 26, 2015. (Photo by Ahmad Masood/Reuters)

Floats are on display during the Republic Day parade in New Delhi January 26, 2015. (Photo by Ahmad Masood/Reuters)

Indian soldiers march during the Republic Day parade in New Delhi January 26, 2015. (Photo by Adnan Abidi/Reuters)

An Indian army tank and multiple launch rocket systems roll down the street as part of the Republic Day parade in New Delhi January 26, 2015. (Photo by Ahmad Masood/Reuters)

Indian soldiers march during the Republic Day parade in New Delhi January 26, 2015. (Photo by Adnan Abidi/Reuters)

Security personnel look through binoculars as they keep vigil over the venue for the Republic Day parade in New Delhi January 26, 2015. (Photo by Adnan Abidi/Reuters)

Spectators use their mobile phones to take photos of a cavalcade of U.S. President Barack Obama (not pictures) as he leaves after attending the Republic Day parade in New Delhi January 26, 2015. (Photo by Ahmad Masood/Reuters)

Cadets from the National Cadet Corps (NCC) celebrate after being awarded third position in the best marching trophy competition during the Republic Day celebrations in the northern Indian city of Chandigarh January 26, 2015. (Photo by Ajay Verma/Reuters)

Cadets from the National Cadet Corps (NCC) celebrate after being awarded the first position in the best marching trophy competition during the Republic Day celebrations in the northern Indian city of Chandigarh January 26, 2015. (Photo by Ajay Verma/Reuters)

Spectators cheer as a cavalcade carrying U.S. President Barack Obama (not pictured) drives past as he leaves after attending the 66th Republic Day parade in New Delhi January 26, 2015. (Photo by Anindito Mukherjee/Reuters)

School children celebrate after winning the best cultural performance trophy during the Republic Day celebrations in the northern Indian city of Chandigarh January 26, 2015. (Photo by Ajay Verma/Reuters)

School children holding tri-coloured balloons take part in the Republic Day celebrations in the northern Indian city of Chandigarh January 26, 2015. (Photo by Ajay Verma/Reuters)

An artist wearing a traditional headgear waits to perform in the Republic Day parade in the northern Indian city of Ajmer January 26, 2015. (Photo by Himanshu Sharma/Reuters)

Police women pose for photographs before taking part in the Republic Day parade in the northern Indian city of Ajmer January 26, 2015. (Photo by Himanshu Sharma/Reuters)

Traffic moves in front of the Chhatrapati Shivaji terminus railway station as it is illuminated with the colours of the Indian flag on the occasion Republic Day in Mumbai January 26, 2015. (Photo by Shailesh Andrade/Reuters)