Formal:
* Nee veettile ethi? (നി വീട്ടിലെത്തി?) - This is a direct translation of "Did you reach home?" and is formal.
* Veettile ethiyo? (വീട്ടിലെത്തിയോ?) - A slightly more formal way to ask.
Informal:
* Veettile ethi? (വീട്ടിലെത്തി?) - This is the most common way to ask in an informal setting.
* Ethiya? (എത്തിയോ?) - This is very casual and implies you know they are already at home.
Adding a bit of context:
* Veettile ethi, ningal? (വീട്ടിലെത്തി, നിങ്ങൾ?) - "Did you reach home, you?" (formal)
* Veettile ethi, nee? (വീട്ടിലെത്തി, നിീ?) - "Did you reach home, you?" (informal)
These are just some ways to ask "Did you reach home?" in Malayalam. The best way to ask depends on your relationship with the person and the context of the conversation.