Murthy entered Westminster Abbey, dressed in a blue satin dress, almost reminiscent of Cinderella.
The subtle tea dress featured a classic botanical print along with puffed sleeves and a belt, which was cinched at the waist.
She paired the A-line dress with a black wedge hat, black clutch bag, and black pumps.
Sunak looked stylish in a long black coat which he paired with a white shirt, blue tie and gray pants.
The couple were also invited to an exclusive coronation reception at Buckingham Palace on Friday 5 May and are also expected to take part in the coronation concert which takes place tomorrow.
Sunak, is the first Indian-born leader and 10 Downing Street’s first Hindu incumbent to play an active role in the ceremony held at Westminster Abbey on Saturday. Sunak read a few pages from the Biblical book of Colossians, following the recent tradition of UK prime ministers giving readings on state occasions.
He and his wife also led the procession of standard-bearers as the flag of the United Kingdom was carried into the Abbey by a high-ranking Royal Air Force (RAF) cadet.
“In the Abbey where monarchs have been crowned for nearly a thousand years, representatives of all faiths will play a central role for the first time,” Sunak said in a statement on the eve of the historic event.
“The Coronation of King Charles III and Queen Camilla will be a moment of extraordinary national pride. Together with friends from across the Commonwealth and beyond, we will celebrate the enduring nature of our great monarchy: its steadfastness, devotion to duty and service to others. No other country could put on such a dazzling spectacle – the processions, the pageantry, the ceremonies and the street parties,” she said.