Advani was born as ‘Alia Advani’ to Jagdeep Advani as a businessman and Genevieve Jaffrey. She has a younger brother, Mishaal (born September 1995). Kiara’s father is a Sindhi Hindu, while her mother, raised a Catholic, is the daughter of Hameed Jaffrey, a Muslim, by his first wife Valerie Salway, a woman of Scottish, Irish, Portuguese and Spanish ancestry
Kiara said that her father, only after watching the 2009 film 3 Idiots, allowed his kids to pursue a career in whatever they were passionate about. Before pursuing a career in film, Advani did two short courses in acting at Anupam Kher’s school of acting and Roshan Taneja’s institute as well.
Advani made her acting debut in Kabir Sadanand’s comedy drama film, Fugly, opposite newcomer Mohit Marwah, Vijender Singh, Arfi Lamba and Jimmy Shergill. The film, described by the director as a “social thriller [film] with a message”, released on 13 June 2014, to mainly mixed reviews. For her performance however, Advani received generally positive reviews, with Taran Adarsh of Bollywood Hungama saying she “catches you completely unaware” and has the “combination of looks and talent”. Mehul S Thakkar of Deccan Chronicle noted her performance as being “very striking” and said she “shows a lot of promise”, along with praising her versatility and range as an actor. Despite this, Suprateek Chatterjee of First Post criticized Advani, calling her “especially bad” and “still very self-conscious in front of the camera