If you are registered in Hindi medium with the UP Board, the UPMSP 10th question papers for Science and Maths will usually be available in both Hindi and English. However, since your official medium is Hindi, you are expected to write answers in Hindi only. Changing the medium is not allowed after registration. So, you can prepare in English and use English question papers for understanding, but in the final UPMSP 10th exam , answers must be in Hindi as per board rules. Also, connect with school authorities to know if any special provisions are available to solve this issue.

You don't have to face any problem as candidates from Hindi medium can write paper in english especially for maths and science.it is good if you write paper in language in which you are comfortable with.the board idea is to check the students knowledge about particular subject not the language in which they written paper.