It depends on which state's domicile you have. It can either be your birth place or where your family owns lands.

But you can also have the domicile of the required state by completing your 11th and 12th from a school of that state. But you have to complete both 11th and 12th from the same school.

So if you attend 11th and 12th from a school in Maharashtra, you will be eligible for the state counselling of maharashtra.

All the best.