It's possible you're referring to:
* Eastern dialects of Telugu: Telugu, like many other languages, has regional variations. Some dialects might be considered "Eastern" due to their geographic location, but there isn't a clearly defined "East Telugu" as a distinct language.
* A misunderstanding: Maybe you heard a phrase or term that uses the word "east" in relation to Telugu, but it's being used metaphorically or in a context you're not familiar with.
To understand the meaning better, please provide more context or information about where you encountered the term "East Telugu."