Kirthana received her Undergraduate degree from Vimala College, Thrissur (affiliated to Calicut University) in English Language & Literature in 2020.She went on to do her Master's in Linguistics from the University of Kerala, Kariavattom and completed the degree in 2022.She qualified for UGC NET & JRF in the Dec 2023 cycle. 

Currently, Kirthana has joined Indian Institute of Technology, Palakkad, as a research scholar in the Department of Humanities & Social Sciences.