Aishwarya Rai was born into a Tulu-speaking Bunt family in Mangalore, Karnataka. Her father, Krishnaraj, was a marine biologist, while her mother, Brindya, is a housewife. She has one elder brother, Aditya Rai, who is an engineer in the merchant navy.
He co-produced one of her movies, Dil Ka Rishta in 2003 The family moved to Mumbai, where Rai attended the Arya Vidya Mandir High School. Rai did her intermediate schooling at Jai Hind College for a year, and then joined DG Ruparel College in Matunga, securing 90 percent in the HSC exams. She trained in classical dance and music for five years during her teens. Her favourite subject was zoology, so she initially considered a career in medicine. With plans to become an architect, she enrolled at Raheja College, but later gave up her education to pursue a career in modelling.
Rai made her acting debut in Mani Ratnam's Tamil biopic film Iruvar in 1997, where she worked alongside Mohanlal The film was a critical success and won many awards, including Best Film award at the Belgrade International Film Festival, and two National Film Awards.
In 1999 Rai starred in Sanjay Leela Bhansali's Hum Dil De Chuke Sanam, opposite and the film had Rai playing Nandini, who is forced to marry Devgan despite being in love with another man (Khan). Her husband tries to help her locate her previous love, and his caring attention eventually wins her over. Rai's portrayal won her critical acclaim, with a review on stating, "Aishwarya looks beautiful as usual ... This film will most likely draw her accolades from all over, may be even get her recognised as an actress the way did in . In many scenes, there is no trace of makeup and she looks very fresh".The film was her first box office success in Bollywood,