Aparna debuted in 2015 in the Malayalam industry through Njan Ninnodu Koodeyundu, a Malayalam-language Indian feature film directed by Priyanandanan, starring opposite Siddharth Bharathan and Vinay Forrt in a lead role.

After the success of Kohinoor, her debut in the Tamil film Industry came in the form of a role in an Ilayathalapathy Vijay movie, playing a minor role as a friend of the female lead Keerthy Suresh, who gets killed, in the 2017 Tamil film, Bhairavaa. The film was directed by veteran Tamil Director Bharathan.

At the Zonal and University Level arts festival conducted by the University of Calicut in 2017, Aparna Vinod played the role of a central female character who went through various stages of life, from a teenaged girl to a revolutionary character, in a play inspired by the Greek tragedy Oedipus Rex.

In January 2018, Aparna was awarded the title of Best Actress in a Leading Role at the Zonal Level by the University of Calicut for her performance in the critically acclaimed English language play, Road To Redemption, Which drew strong influences from plays like Dickens’ Christmas Carol and Oscar Wilde’s The Happy Prince. The key theme of the play deals with the protagonist’s struggle with Oedipus Complex.