Good to see that you are preparing for board exams from this year it is very important for students to study throughout year rather than in last days .One of the best ways to prepare for board exams is to practice question sets of the previous 5 to 10 years to achieve your marks target and also to understand the paper pattern.These question papers are available here

https://school.careers360.com/boards/jkbose/jkbose-10th-question-papers