Formal:
* ഞാൻ ആരാണ്? (njan aaraan?) - This is the most direct and formal translation.
* എനിക്ക് ആരാണ്? (enikku aaraan?) - This is a slightly more nuanced way to ask the question, meaning "Who am I to you?" or "What am I to you?".
Informal:
* ഞാൻ ആര്? (njan aar?) - This is a more casual way to ask "who am I?".
* എന്താണ് എന്റെ പേര്? (enthaanu ente paer?) - This literally means "What is my name?" but can also be used to ask "who am I?" in a playful or informal context.
Philosophical:
* എന്റെ സ്വഭാവം എന്താണ്? (ente swabhaavam enthaanu?) - This means "What is my nature?" and can be used to ask about one's identity in a deeper, philosophical sense.
The best translation for you will depend on the situation and the specific meaning you want to convey.