What is the order issued by AO?
Prosecution is a very serious punishment and it's applied in a very rare case.
276B is applicable only if you have failed to pay the amount to the credit of government. But since you have paid the TDS amount to government even before receiving the notice I don't think they will start prosecution proceedings.
Have you filed appeal before CIT (A)?
Why has CIT issued you notice? Is it CIT or CIT (A).
Just go with all your proof that you were not at all required to deduct TDS but then also you have deducted the TDS and paid it with interest. Was there any late fees liability on you?
You will get CIT (A) order.
If you are not sure about your proof then you should get a local CA who has good appeal related practice.
Hope you find the information helpful if you do please rate it 5 and provide your valuable feedback for my improvement.
Thank you