Born to filmmakers Jahangir Kosari and Rakhshan Banietemad, she began her career with acting in the films of her mother.

She had appearances in some of her mother's films, Nargess (1991), Rusari-ye Abi (The Blue-Veiled) (1994), May Lady (1997), Kish Stories (Rain and Ladsman episode - 1998), Under the Skin of the City (2000), Our Times (documentary - 2001).

[1][2] Baran Kosari also ascertained her abilities as a theater actress with playing in Over the Mirror (1997), with Azita Hajian directing.

Yari is an independent, non-profit, and non-governmental organization that operates under the slogan "Fewer Street Children, More Students."

The primary goal of this organization is to provide comprehensive support for children, create educational opportunities, and offer resources for schools and libraries in underprivileged areas.