Hi candidate,

As you got admission in management quota as you wished, then there should be no problems. As you haven't mentioned where you did the the mistake, it is not possible to interpret the best solution, but you will be considered in management quota only, as there is much difference in admission procedure of regular candidate and management candidate.

With management quota, one needs to pay certain donation amount depending on the branch they want to study. Additionally, they also needs to pay the college fees like regular students. They have only  got relaxation from entrance test procedures.

I hope it covers your query.

Thank you!