A a decorated old girl of Museaus College Colombo, Ms Tharanga was a school prefect and house captain. She was an active member of the school community taking part in athletics, netball, singing and drama.
Ms Tharanga holds a Bachelor of Science Degree specializing in Environmental Science. She also holds a Post Graduate Diploma in Education from the University of Colombo. She has been involved in the field of education for over 15 years holding positions of varying roles from teacher to school Principal. Her illustrious career in education has seen her be a part of distinguished International Schools in the country. She is an author of multiple children story books, a composer of songs and an passionate poet.