Nilanga studied primary school at WP / Ho Seethawaka National School, Avissawella, and secondary school at Royal College, Colombo 07. He obtained his Bachelor of Agricultural Sciences (B.Sc. (Agric)) with a specialty in Biotechnology at the University of Wayamba in Sri Lanka (2014 – 2018). He followed courses in molecular genetics and genomes, biochemistry, elemental statistics, plant cultivation, molecular biology, soil science, microbiology, and bioinformatics. He is co-author of the preliminary study on fauna diversity in an evergreen forest patch on a fragmented plain in the Wawekele Forest Reserve, Avissawella, Sri Lanka