Formal:
* నేడు భోజనం చేశారా? (néḍu bhōjanam chēśārā?) - This literally translates to "Did you eat food today?"
* నేడు భోజనం చేసారా? (néḍu bhōjanam chēśārā?) - This is a more polite way of asking if someone ate.
Informal:
* నేడు తిన్నారా? (néḍu tinṇārā?) - This is a casual way of asking "Did you eat today?"
* తిన్నావా? (tinṇāvā?) - This is the most informal way of asking "Did you eat?"
If you want to say "I ate today" in Telugu:
* నేను నేడు భోజనం చేశాను. (nēnu néḍu bhōjanam chēśānu) - This is the formal way of saying "I ate today".
* నేను నేడు తిన్నాను. (nēnu néḍu tinṇānu) - This is the informal way of saying "I ate today".
Remember that the choice of words will depend on the context and your relationship with the person you are speaking to.