It sounds like you are looking for a PDF of (සිංහල අකුරු හුරුව), which is a foundational children’s book or worksheet set used to teach Sinhala letters (alphabet), phonics, and basic writing.

However, I cannot directly provide a PDF file or a download link due to copyright restrictions. Many versions of Akuru Huruwa are published by educational institutions (e.g., Government of Sri Lanka’s Educational Publications Department) and are copyrighted.