Here are some examples of how "endu" is used:
* "Njaan oru puththakam vaayikkunnu endu" (I am reading a book that**). Here, "endu" functions like "that" in English, connecting the two clauses.
* "Athu endu aayi" (It is so). Here, "endu" is used to emphasize the fact that something is true.
* "Avar endu aayi" (It is him). Here, "endu" clarifies that the subject is a specific person.
In essence, "endu" doesn't have a direct translation like "that" or "which" in English. It's a versatile grammatical particle that adds nuance and clarity to Malayalam sentences.