In 2011 she won The Waterstones Children’s Book Prize for her debut novel Artichoke Hearts. Her subsequent novels, Jasmine Skies, Kite Spirit, Red Leaves, Tender Earth, Brace Mouth False Teeth, Car Wash Wish, Worry Angels, Zebra Crossing Soul Song and Corey's Rock have been nominated for many awards including Carnegie and UKLA Book awards. Her work has been endorsed by The Reading Agency and Amnesty International.
Sita’s plays include Lyrical MC and The Arrival (for Tamasha Theatre Company). Sita has been Book Trust Writer in Residence and is currently Writer in Residence at Islington Centre for Refugees and Migrants and an Amnesty Ambassador. In 2018 she received the UK Honour for Writing from The International Board of Books for Young People. Her latest novel Where The River Runs Gold was Waterstones Book of the Month and Times Book of the week on publication this July. She is currently working on two further commissions.