Just moments before a friend of tragically and suddenly died, he was all smiles as he posed for a photo.

died after reportedly swallowing a bee in the middle of a match, triggering a fatal heart attack. The billionaire is survived by three children and wife Priya Sachdev.

The heartbreaking incident took place at the Guard Polo Club in Windsor, somewhere William has played the elite horseback sport.

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The billionaire was the chairman of global car parts giant Sona Comstar, and had played polo with Prince William before.

In a moving tribute, the final photo he ever posed for was released by the team he had played against before he died in a touching post. Sunjay was beaming in the image, as he stood hugging Jaisal Singh - the captain of Sujan Indian Tigers.

"Today we play the final of the Cartier Trophy in the memory of our dear friend Sunjay Kapur who tragically passed away on the field a few days ago," the Sujan Indian Tigers post read.

"Our Captain and Patron, Jaisal Singh, will mount up with the team to observe a minute's silence in honour of his dear old friend Sunjay, and then sit out as a mark of respect," they added. "This photograph of Sunjay and Jaisal was taken moments before they mounted up to play the semi-finals a few days ago."

They rounded off the touching tribute by saying, "RIP Sunjay; you will be missed - your tireless enthusiasm and patronage will be remembered forever by the entire polo community."

Sunjay's team wrote their own moving tribute to him: "The Aureus team are all in total and utter shock. Sunjay – you were the life and soul of the Aureus Team – you were a true inspiration and that legacy will remain forever."

Despite being born into wealth, Sunjay had a successful career and helped make his business an important supplier in the electric vehicle industry. He was often invited to play polo with society's elite, and even some of the royals.

One match he played with Prince William became a point of contention in his first marriage to Bollywood star Karisma Kapoor who claimed he had left their unwell infant son to go and play polo with the future King.

"(Sunjay) decided to carry on, leaving me behind to take care of our sick four-month-old son, just to play a Polo match with Prince William. I also realised that he had married me only because I was a famous and successful film star, which would facilitate him to be reported in the press.

"It came as a surprise that he always wanted to be known in public and be famous, but since he never did any deed worth mentioning, he was not able to garner any attention," his ex-wife said.

While playing polo, it is understood the bee stung Kapur in his mouth, potentially triggering anaphylactic shock that caused his heart to stop.