Publishing Same Research Paper on a National Conference as well as International IEEE conference
You cannot publish the same paper at these two conference. For an IEEE conference publication, you have to transfer copyright on the paper to the IEEE, which precludes publication in another proceedings.

You shouldn't have submitted the same paper to two places simultaneously. It's clearly against ethical standards in academics. It is not your fault, if there wasn't a clear indication on the conference submission site, and your advisor hasn't intervened (he should have). Still you have to deal with the consequences now.

And the consequences are that you have to withdraw your paper from one of these conferences. If you have the choice, it would probably be better to withdraw from the national conference. Call yourself lucky if you don't get into deeper trouble from this.