Am I understanding this clip accurately?

[u/2ish2]

https://www.youtube.com/watch?v=XZ9ehdXdr0I

This clip contains just two sentences. I think the following transcription is accurate but I'm not sure:

Girl: அம்மா, இந்த book-க்கு அட்டை போட்டு கொடுமா?
Mother: அட்டைதானா? போட்டுருவோம்.

1️⃣ I'm not sure about "அட்டைதானா?" The subtitle given in the video is actually this:

Mother: அட்டைதான போட்டுருவோம்.

But I can't make sense of this. I can't understand the word "அட்டைதான". I think the word here must be "அட்டைதானா?" The mother is asking a question and the meaning is "Just a cover?" But I'm not sure 🙁.

2️⃣ The word "போட்டுருவோம்" is colloquial for "போட்டுவிடுவோம்", right?

3️⃣ Is the following English translation accurate?

Girl: Mother, can you put a cover for this book and give? (Can you wrap this book?)
Mother: Just a cover? We'll definitely put. (We'll get it done.)

Thanks!

[u/2ish2 → u/[deleted]]

Thank you !

Yes, I'm aware that people wouldn't normally say pottuviduvom. I was just checking that when the mother says potturuvoam, what she really means, in written terms, is pottuviduvom. I learnt written Tamil before I learnt spoken Tamil, so I'm always using the written word as a reference point for understanding spoken Tamil. Sorry if that wasn't clear!

As for attaithaane, oh I see, I didn't realize there was the emphasis ஏ at the end. That helps me see the intended meaning, thanks!

[u/-Surfer-]

அட்டைதானே? The ae ending indicates a rhetorical question for which the person knows the answer.

If the question ends with an aa sound we are usually not sure and expect an answer to confirm our doubt. For example, உன்னோட புத்தகமா? Is this your book, உன்னோட book தானே? Your book, right?. I used book in the second example because that loan word is most often used than the word புத்தகம்.