Prince William and Kate Middleton paid tribute to Indian soldiers killed during the First World War at a memorial in New Delhi. The royal couple laid a wreath at the memorial, which bears the names of nearly 13,000 slain Indian soldiers. The Duchess looked amused after a stiff breeze whipped her hair around and caused her dress to balloon.

Royal tour India
The wind blows Kate's hair as she and her husband lay a wreath at India GateDominic Lipinski
Royal tour India
The wind catches the Duchess of Cambridge's dress as she and her husband lay a wreath at the India Gate war memorialDominic Lipinski
Royal tour India
The Duchess of Cambridge smiles after laying a wreath to honour the soldiers from Indian regiments who served in the First World War Dominic Lipinski
Royal tour India
The royals pay tribute to soldiers from Indian regiments who served in the First World War Manish Swarup/AFP
Royal tour India
The card on a wreath laid by the Duke and Duchess of Cambridge at the India Gate war memorialManish Swarup/AFP
Royal tour India
The Duke and Duchess of of Cambridge pose after paying their tributes at the India Gate war memorialManish Swarup/AFP
Royal tour India
Prince William signs the visitors' book at the India Gate war memorial as Kate Middleton looks onManish Swarup/AFP

The royals then paid their respects to Indian independence leader Mahatma Gandhi. On the second day of their week-long royal tour of India, they placed a wreath and bowed their heads as they stood in front of a memorial for Gandhi in New Delhi. They also toured a museum near the spot where the independence leader was assassinated in 1948.

Royal tour India
Prince William and Kate Middleton pay their respects at the place where Mahatma Gandhi's life ended on 30 January 1948Ian Vogler
Royal tour India
Kate Middleton and Prince William visit Gandhi Smriti, a museum located in Old Birla House, where India's founding father, Mahatma Gandhi, spent the last few years of his lifeJoe Giddens
Royal tour India
The Duchess of Cambridge walks barefoot as she visits Gandhi SmritiJoe Giddens
Royal tour India
The clutch bag carried by the Duchess of CambridgeJoe Giddens
Royal tour India
A close-up of one of Kate's earringsManish Swarup/AFP
Royal tour India
A statue of Gandhi is pictured at Gandhi Smriti, a museum located in Old Birla House, where India's founding father spent the last few years of his lifeArthur Edwards
Royal tour India
The royal couple watch a craftsman at the Gandhi museumArthur Edwards

In the evening, the couple attended a garden party in New Delhi to celebrate Queen Elizabeth's 90th birthday, which is on 21 April. William addressed a large gathering of prominent Indians at the reception to speak about his grandmother, Britain's longest-reigning monarch.

The prince said his trip to India celebrated the link between Britain and India, which was part of the British Empire before gaining independence in 1947. He also read out a message from the Queen hailing the "enduring friendship, shared culture and business opportunities between the two countries."

Royal tour India
The Duke and Duchess of Cambridge attend a garden party celebrating the Queen's 90th birthdayMark Large
Royal tour India
Kate Middleton is pictured at the garden party in New DelhiMark Large

On 12 April, the royal couple will sit down for lunch with Indian Prime Minister Narendra Modi, before travelling to the Kaziranga National Park, home to two-thirds of the world's Indian one-horned rhinos, in the north-eastern state of Assam. They will also visit neighbouring Bhutan at the invitation of the Himalayan kingdom's King Jigme Khesar Namgyel Wangchuck and Queen Jetsun Pema.

William and Kate will then head back to India, where they'll wind up their tour with a visit to the Taj Mahal, retracing the steps of a 1992 visit to the monument of love by William's mother, the late Princess Diana.