In 2018, she made her first music video appearance with the song Priyawee sung by Sirasa Superstar season 6 winner Piyath Rajapakse.
[8] In the same year, she acted in the serial Thuththiri, the first Sci-Fi Comedy Mega tele-drama in Sri Lanka.
In 2018, she made her maiden cinematic appearance with the film 1970 Love Story directed by Aruna Jayawardena.
[13] Then in 2020, she joined the cast of Agni Piyapath directed by Jayaprakash Sivagurunadan and written by Saddha Mangala Sooriyabandara.
[14] In the serial, Sandani played the lead role of 'Madhavee',[15] wife of Manuranga, opposite to Saranga Disasekara and Shalani Tharaka.