This is a rare sound in modern Telugu.

A "Gunintham" is formed by adding a vowel's secondary symbol to a pure consonant. క్ (k) Vowel: ఆ (aa) Result: కా (kaa) The "Ka" Gunintham in English

To help you memorize the patterns, here is the full set for just the first letter :

Mastering (గుణింతాలు) is a fundamental milestone for anyone learning the Telugu language. Often called "Telugu Barakhadi," these represent the combinatory forms of consonants and vowels. By understanding how to write and pronounce Guninthalu in English, learners can bridge the gap between simple alphabets and fluid sentence construction. Understanding the Basics