Post graduated in English Literature, Sithara S published her first short story collection in 2000 titled Agniyum katyhakalum. She had also published story collections titled Veshapakarcha, Nruthasala,idam, Karuthakuppayakari and Sitharayude kathakal. She writes in magazines and has a collection of essays to her credit. She has won many awards and accolades for her writings including the Kerala Sahitya Akademi award, Gita Hiranyan award and Kendra Sahitya Akademi Yuvasahitya award.