This document discusses the proper pronunciation of certain letters in the Urdu alphabet. It notes that the letters ژ, چ, and ش sound similar to zh, ch, and sh in English but are produced differently. For ژ, چ, and ش the tip of the tongue should touch the roof of the mouth, while for ج, ق, and خ the tip of the tongue should be behind the lower teeth. Mastering these distinctions is important for pronouncing Urdu letters correctly.