The gown displayed the exquisite work of Indian Zardozi artisans, featuring a cropped top and a skirt embellished with stones and sequins throughout, complemented by a five-meter-long head veil and a dupatta shawl.
Her jewelry, worn previously by her mother and sister at their weddings, included a diamond necklace set with large emeralds.
Besides dressing the bride, Khosla also designed garments for the whole Ambani family, including a sherwani for the groom Anant (fifth from R), and a silk ghagra and dupatta shawl for his mother Nita (third from R).
Page Six reported that the designer spent almost two years completing these outfits.
Additionally, Radhika wore another design by Indian designer Manish Malhotra during the first day’s ceremonies, including a red and gold dress that exposed the midriff, paired with a hand-embroidered head veil that required hundreds of hours to complete.
For the pre-wedding festivities, Radhika dazzled in a yellow dress paired with a cloak decorated with lily of the valley, which was made by Indian designer Anamika Khanna.
According to Vogue, Radhika collects exclusive, high-end designs and diamond jewelry.
Anant, 28, is the youngest son of Mukesh Ambani, who leads the Reliance Industries conglomerate with annual revenues of US$110 billion.
As of July 14, Forbes ranks Mukesh Ambani's net worth at US$123.7 billion, placing him as the richest person in Asia and the 11th wealthiest globally.
Radhika, 29, is the daughter of Shri Viren Merchant, CEO of the well-known Indian healthcare firm Encore Healthcare.
Both Anant and Radhika received their education at universities in the U.S.
Their wedding was held at the Jio World Centre in Mumbai from Friday to Sunday, accommodating around 1,200 guests.