How to Study for CBSE Board Exams: Two Class X Dates

Study for CBSE Class X board exams by planning for two sittings on one syllabus. Students in the 2026-27 session sit the main exam from mid-February 2027 and may sit a second exam in May for up to three subjects. Both cover the full syllabus, so the February paper stays the target.

Two kinds of published source carry what a plan needs. The board notification that created the second exam fixes the dates and the eligibility rules. The subject curriculum for each paper carries a question paper design, which states how the 80 theory marks are spread across difficulty bands and across units.

What did CBSE change for Class X?

Notification CBSE/CE/2-Board Examinations-X/2025, dated 25.06.2025 and headed Two Board Examinations in Class X from 2026, gives Class X candidates a second sitting within the same session. It is signed by Dr Sanyam Bhardwaj, Controller of Examinations, and it traces the change to Para 4.37 of NEP 2020, which it quotes on reducing the high stakes of a single sitting: “all students will be allowed to take Board Exams on up to two occasions during any given school year, one main examination and one for improvement, if desired.”

The first sitting stays compulsory. The notification puts it in one line: “It is mandatory for all the students to appear in the first Board examination.” The May sitting is open to a limited group and a limited number of subjects, and that is where the planning consequences come from.

What does the May exam require?

CBSE settles the biggest question about it in one sentence: “Both the examinations will be conducted on the full syllabus meant for the year.” A candidate who sits Science again in May prepares a whole year of Science again, with no reduced portion and no shortened paper.

Who may sit it is fixed as well. The notification lists the improvement category as “up to 3 main subjects”, and states that “All passed and eligible students will be allowed to improve their performance in any of the three subjects out of Science, Mathematics, Social Science and languages.” One rule closes the door completely: “If a student has not appeared in 3 or more subjects in first examination, then s/he will not be allowed to appear in the 2nd examination.”

February also produces a result that stands on its own. CBSE states that “Performance of main examination will be made available in DigiLocker. This could be used for admission to class XI if the student does not wish to appear in 2nd examinations for improvement.” For candidates who fall short, “Students not qualified in the main examination will be allowed provisional admission in Class XI and based on the result of the 2nd examination, their admission will be confirmed.”

One further line shapes the April decision more than any other: “Facilities of Photocopy, verification and re-evaluation will be available only after declaration of results of 2nd examination”. So a candidate weighing a May attempt in April works from the marks as published, with no recheck of the February answer book available yet, and a few weeks to rebuild up to three full subjects. That window rewards a subject chosen early and a plan written before the result lands. Anyone treating May as cover for a thin February is choosing to prepare the same syllabus twice.

The 20 marks that are settled before February

Science and Mathematics Standard each carry 80 theory marks and 20 internal marks, and the 2026-27 curriculum documents divide those 20 differently:

• Science (086): periodic assessment 5 marks, multiple assessment 5, portfolio 5, and subject enrichment practical work 5.
• Mathematics Standard (041): a pen paper test and multiple assessment worth 5 marks each, portfolio 5, and lab practical 5, with the lab activities taken from the prescribed books.

The notification adds the timing rule: “Internal assessment will be conducted only once before the main examinations.” Those 20 marks are earned during the school year now in progress, and the calendar gives one run at them. A theory score of 68 out of 80 reads very differently beside 20 out of 20 internal than beside 12 out of 20. Treat every periodic assessment as a marked component of the board result, because that is what it is. Preparing properly for a school test is the same skill on a smaller scale.

What does the CBSE question paper design reward?

Each subject curriculum publishes a table showing how the 80 theory marks are spread across competency. The Science (086) curriculum for 2026-27 and the Mathematics Standard (041) curriculum both do it, in different wording, with a similar answer.

Read those rows as a statement about demand. Around half the marks in Science, and 43 of the 80 in Mathematics Standard, sit in the band that pays for knowing and understanding the material. Roughly a fifth sits at the top. A line repeated across coaching blogs turns the Science 50% into a claim that half the paper is competency-based questions, which is a different axis: the same Science design lists its question formats in a note under the same table, covering “VSA including objective type questions”, items pairing an assertion with a reason, short answer, long answer, and “Source-based/ Case-based/ Passage-based/ Integrated assessment questions.”

What follows for a study plan is unglamorous. Half of an 80 mark paper rewards definitions that come back intact, statements of law, balanced equations, labelled diagrams and standard methods worked without hesitation. Self-testing on that layer earns marks across every band, since an analysis question written on a shaky definition loses marks twice over. Chapters taught early in the session have had the longest time to fade, so spacing your recall of the earliest chapters is what keeps Chapter 1 available in February.

One more line changes what happens in the hall. The Science design says “An internal choice of approximately 33% would be provided.” A third of the paper offers a choice, which makes the first pass through the question paper a triage pass: read every choice pair before writing anything, mark the one you can finish cleanly, and spend the minutes saved on the long answers where the top band lives. Objective and assertion-and-reason items reward a different discipline again, closer to the way a multiple-choice section is worked, where eliminating wrong options beats recognising a right one.

The Science curriculum also rules parts of the textbook out of the 80 marks, and that is the part most revision plans miss. Three topic groups sit in the syllabus carrying a note that they “will be assessed only formatively to reinforce understanding without adding to summative assessments”: Periodic Classification of Elements in Unit I, Evolution in Unit II, and Motor, Electromagnetic Induction and Electric Generator in Unit IV. Schools still teach them, and they can still count towards your internal assessment. None of them carries summative marks in February.

A smaller carve-out sits beside them. Of the information boxes NCERT prints through the book, the curriculum says: “However, the information in these boxes would not be assessed in the year-end examination.” Hours spent memorising box content are hours the 80 mark paper will never pay for.

Take the topic list off the syllabus pages rather than the summary. The same document ends with a note for teachers whose first item names “Heredity and Evolution” and “Electric Effects of Electric Current”, which is looser than the syllabus pages: Heredity is listed as ordinary Unit II content, and Unit IV drops only Motor, Electromagnetic Induction and Electric Generator. A student who revised from that first item would drop Heredity and most of Effects of Current, both of which carry marks. The other items in that note are where the box rule above and the portfolio credit come from.

Which chapters are worth the most hours?

The two curriculum documents also publish unit-level weightings, which turn a syllabus into a ranked list.

Two Science units carry 50 of the 80 marks between them. In Mathematics Standard, Algebra, Geometry and Trigonometry carry 47. A shaky chapter inside a 25 mark unit is worth more of your week than a comfortable chapter inside a 5 mark one, and that comparison is the whole of a marks-per-hour plan: rank your weak topics by the marks of the unit they sit in, drop the formative-only topics named above, then work down the list. With several subjects landing in one February diet, a plan that allocates hours across subjects stops the weightings being applied to one paper at a time.

Where to be by February

The session is partway through as of September 2026, which leaves roughly five months to the first paper. Three fixed points belong in a calendar now: the internal assessment dates your school sets, the pre-board exams it runs, and the mid-February start. Sample papers are the instrument for the February paper itself. Sit one to time, mark it strictly, and write down where each lost mark went, since a lost mark is usually one of three things: content that did not come back, a question whose command the answer never met, or time that ran out. Treating pre-boards as the rehearsal they are turns each practice paper into a short list of what to fix next.

Then decide in advance what the April result will mean. Pick, now, the one subject you would carry into May if a mark disappoints, and the score that would trigger it. Made in September, that decision is free. Made in late April, it eats part of the few weeks available to act on it.

Where GeniusPal fits, and where it stops

GeniusPal takes one file of your own material and writes questions from it. It reads a PDF, Word file, PowerPoint, plain text, Markdown or CSV up to 10 MB, or a pasted link, and returns a study set you can sit straight away. On the knowing and understanding layer that carries half the Science paper, it removes the hours otherwise spent writing your own questions from a chapter you have already read.

One limit matters more than the rest for a board candidate. GeniusPal runs no OCR, so the file has to contain selectable text. A photographed textbook page, a picture of a friend’s notes, or a scanned handout with no text layer is refused at upload. Photographing pages is the normal way study material travels between students, which makes this the most likely way a file fails here. Typed notes, a downloaded curriculum PDF and an exported document all work.

Its exam style feature reads a past paper, and a CBSE sample paper counts, then shapes the questions written from your notes to follow that paper. It predicts nothing about what will appear in February, and no tool can. A free account reads one past paper into a style for the lifetime of the account, Student allows ten a month and Genius thirty. The effect shows up most in written answers, which need a paid plan, so on a free account the wording of a multiple-choice set moves much less.

A free account gets two study-set generations for the lifetime of the account, ten questions per set, every question multiple choice, and two full runs of each set. The Student plan is $14.99 a month for 100 generations a month, and adds flashcard mode, recall mode, written quiz answers and sets of up to 30 questions. Genius is $59.99 a year. A daily review is free on every plan and draws up to 20 questions from across your sets, led by the ones you got wrong or have yet to try. Prices are in US dollars.

It does no video, no lecture recording, no voice, no Anki export, no browser extension and no phone app. It cannot mark an answer against a CBSE standard, and it knows nothing about your internal assessment. The documents that decide your marks stay where they have always been: the notification, the curriculum for each subject, and the sample papers, all of them free to read on the CBSE websites.