Most board students are busy, not effective. They read chapters repeatedly, watch long lectures, and still walk out of the exam hall unsure. That’s not bad luck. That’s poor preparation design. Board exams are structured evaluations. They reward students who practice in the same format that the board uses to test them. If your resources don’t match that format, your effort leaks marks. https://www.selfstudys.com/page/isc-class-12-previous-year-question-papers