I notice you're asking for a PDF of "Mizo Kristian Hla Thar Bu" (a Mizo Christian hymnal). I cannot produce or provide copyrighted PDFs of books, including hymnals, as that would violate copyright law.

However, I can offer a of the hymnal based on publicly available information about Mizo Christian music: Review: Mizo Kristian Hla Thar Bu (Mizo Christian Hymnal) Overview: Mizo Kristian Hla Thar Bu (often abbreviated as Hla Thar Bu ) is one of the most widely used hymnals among Mizo Christians in Mizoram, India, and Mizo communities worldwide (including Myanmar, Bangladesh, and the diaspora). It is a significant update or supplement to the older Mizo Kristian Hla Bu (the "old book").