Rosario chose to enrol at The Centre for Performing Arts College in 2006 after becoming interested in dance and acting.

She subsequently represented brands including Perfect Asian and Pizza Hut, while also working on television commercials for Heart FM and ITV's Magic Numbers.

Rosario made her acting debut by portraying a supporting role as Deepika Padukone's friend in Love Aaj Kal (2009), before working as a choreographer for the BBC Asian Network and as a freelance dancer for shows.

[2][3] In 2013, Rosario appeared in an item number alongside Akshay Kumar in the Hindi gangster film, Once Upon ay Time in Mumbai Dobaara!

[6] In 2017, Rosario appeared in an item number alongside Rajneesh Duggal and Prem Chopra in the Hindi comedy film, Udanchhoo (2018).