[2] After earning master's and MPhil degrees, she started her career as a lecturer at Malabar Christian College, simultaneously continuing her doctoral studies.

[3] Later she taught at various government colleges in Malappuram, Kalpetta, Perinthalmanna, Thrissur, Pattambi and Kodungalloor before joining Kerala Sahitya Akademi as the publications officer on deputation.

She died due to cancer on 2 January 2002, aged 43, at her home in Thrissur and her dead body was cremated at Ullannoor Mana, her ancestral house.

Geetha participated in a literary competition organized by Mathrubhumi for their Vishu edition in 1979 and her story, Deerghapankan, was selected for the consolation prize.

[11][12] Kerala Bhasha Institute has published her biography, under the title, Geetha Hiranyan:Jeeva Charithram, written by Sheeba Divakaran.