Hello,
Prelims are done before board exams in 10th to test your preparation and to motivate you to work harder. In most schools these papers are checked very strictly so that students study harder for finals. Do not demoralise yourself because of your prelims marks. Continue studying and put in a lot of hard work and effort. Identify your weak points and prepare those topics better.Do not lose your confidence or motivation. You can do it if you put in the hard work.
Hope this helps.
All the best.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile