Hello,
Since you are a student of Sant Pushpa Inter College under UP Board in Kushinagar, your exam center for class 10th will be allotted by the UP Board based on your district and school. Usually, students are assigned either their own school or a nearby government/inter college in the same district as the exam center. The exact center and room number will be mentioned on your admit card, so you should check your admit card carefully for the specific details.
Hope this helps you.