The ISC Compartment Exam 2027, officially called the ISC Supplementary Examination by the Council for the Indian School Certificate Examinations (CISCE), gives Class 12 students a second chance to pass in one or two subjects without repeating the full academic year. Based on historical patterns, the ISC 2027 supplementary exam is expected in July 2027, following the main ISC 2027 result declaration in May 2027. CISCE will release all official dates, application forms, and admit cards through its portal at cisce.org.
Students who fail in a maximum of two subjects in the ISC 2027 main examination become eligible for the supplementary exam. CISCE conducts this exam at the same centres as the main ISC exam, using the same syllabus and paper pattern. The dates, application process, and fee structure for ISC 2027 will be announced after the main ISC 2027 results are declared.
The ISC supplementary exam preserves academic continuity — students who pass clear their marksheet and remain eligible for college admissions and further studies without losing a year.
- Students failing in 1 or 2 subjects in ISC 2027 are eligible for the supplementary exam.
- The ISC 2027 supplementary exam is tentatively expected in July–August 2027, following the main ISC 2027 result.
- Minimum passing marks for ISC: 35% separately in theory and in practical/internal assessment — both conditions must be met independently.
- The supplementary exam follows the same syllabus and paper pattern as the main ISC 2027 exam.
- Internal assessment and project marks from the main ISC 2027 exam are carried forward; students need not resubmit projects or reappear for practicals.
- Students failing in 3 or more subjects are not eligible for the supplementary exam and must register as private students for the next cycle.
- All official updates are published on the CISCE website (cisce.org) — students should monitor it regularly after the ISC 2027 result is declared.
ISC Compartment Exam 2027
In ISC 2026, the supplementary examination was held in July 2026, approximately two months after the main ISC results were declared in May 2026. Thousands of students appeared for the supplementary exam in one or two subjects, with CISCE announcing the supplementary results in August 2026. For ISC 2027, the same timeline is expected: students who receive the supplementary tag after the May 2027 results will have until approximately June 2027 to apply, with the exam itself in July 2027. The subject-wise datesheet will be released by CISCE closer to the exam — the 2026 pattern saw multiple subjects scheduled across two to three weeks in July.
- ISC Compartment Exam Date Sheet 2027
- ISC Compartment Admit Card 2027
- ISC Compartment Exam Syllabus
- ISC Compartment Exam Pattern 2027
- Previous Year Question Papers with Solutions
- ISC Compartment Exam Eligibility Criteria 2027
- ISC Compartment Exam Fee Structure
- ISC Passing Marks Criteria 2027
- ISC Grading System
- ISC Compartment Exam FAQs
ISC Compartment Exam Date Sheet 2027
The ISC 2027 supplementary exam datesheet will be released by CISCE on its official website (cisce.org) after the main ISC 2027 results are declared, expected in May 2027. Based on the ISC 2026 supplementary exam schedule, the 2027 supplementary exam is expected to be held across multiple sessions in July 2027. The table below shows the expected ISC 2027 compartment exam lifecycle and important dates — all dates are tentative and subject to official confirmation by CISCE.
| Event | Expected Date (2027) | Remarks |
|---|---|---|
| ISC 2027 Main Exam | February – April 2027 | Expected; official schedule released by CISCE in December 2026 |
| Declaration of ISC 2027 Result | May 2027 | Expected; supplementary tag issued alongside result on cisce.org |
| Release of Supplementary Application Form | June 2027 (1st Week) | Expected; submitted via CISCE portal by school principals |
| Last Date to Apply (Regular) | June 2027 (3rd Week) | Expected; late fee applicable after this date |
| Last Date to Apply (With Late Fee) | June 2027 (Last Week) | Expected; no applications accepted after this date |
| Download of Admit Card | July 2027 (1st Week) | Expected; available on CISCE portal and through school principals |
| ISC Supplementary Exam 2027 | July 2027 (2nd Week Onwards) | Expected; subject-wise datesheet released separately by CISCE |
| Declaration of Supplementary Result 2027 | August 2027 | Expected; results published on cisce.org |
Note: All dates above are expected based on ISC 2026 patterns and are subject to change by CISCE. Students must verify all official dates directly on cisce.org. Each ISC supplementary exam paper also includes 15 minutes of reading time before the paper begins.
ISC Compartment Admit Card 2027
The ISC Supplementary Exam Admit Card 2027 will be released by CISCE on its official portal at cisce.org in July 2027, approximately one week before the supplementary exam begins. The admit card carries the student’s roll number, exam centre details, paper schedule, and reporting time — students must not appear for the exam without it. It must be preserved until the supplementary results are officially declared by CISCE.
- Regular Students: The school principal downloads the admit card from the CISCE Careers portal and distributes it to eligible students. Students should collect it from their school at least three days before the exam and verify all printed details — name, roll number, subject(s), and exam centre — immediately.
- Private Students: Students who registered for the ISC 2027 supplementary exam as private applicants can download their admit cards directly from the CISCE portal using their registration number and date of birth.
Where are ISC compartment exams held?
CISCE conducts the ISC 2027 supplementary exam at designated exam centres across India — typically the same CISCE-affiliated schools and institutions that served as centres for the main ISC 2027 exam. The assigned exam centre is printed on the admit card. Students must report at least 30 minutes before the scheduled start time and carry both the admit card and a valid photo ID. Overseas CISCE-affiliated schools also conduct the supplementary exam for international students enrolled in those institutions.
ISC Compartment Exam Syllabus
The ISC 2027 supplementary exam syllabus is identical to the main ISC 2027 syllabus for each subject. CISCE does not release a separate or reduced syllabus for the supplementary exam. Students must prepare the complete subject syllabus as prescribed in the CISCE ISC 2027 curriculum document, available on cisce.org under Regulations and Syllabuses.
Since internal assessment marks are carried forward from the main exam, students appearing for the supplementary exam only need to retake the theory paper. Focusing revision on the theory portions — especially chapters and question types where marks were lost in the main ISC 2027 exam — is the most effective preparation strategy.
| ISC Subject | Syllabus Resource |
|---|---|
| English Language | Download from CISCE Official Website |
| Physics | Download from CISCE Official Website |
| Chemistry | Download from CISCE Official Website |
| Biology | Download from CISCE Official Website |
| Mathematics | Download from CISCE Official Website |
| Computer Science | Download from CISCE Official Website |
| Accounts | Download from CISCE Official Website |
| Economics | Download from CISCE Official Website |
| Commerce | Download from CISCE Official Website |
| History | Download from CISCE Official Website |
| Geography | Download from CISCE Official Website |
| All Other ISC Subjects | Download from CISCE Official Website |
Note: CISCE occasionally updates the syllabus for specific subjects between cycles. Students should download the latest ISC 2027 syllabus directly from cisce.org to confirm they are revising the current curriculum and not an older version.
ISC Compartment Exam Pattern 2027
The ISC 2027 supplementary exam follows the same paper pattern as the main ISC 2027 exam for each subject. Most ISC subjects have two components: a written theory paper (70 or 80 marks) and an internal assessment or practical component (20 or 30 marks) — and for the supplementary exam, only the theory paper is retaken, since internal assessment marks are carried forward automatically. Students need not reappear for lab practicals, project work, or school-assessed components.
| Subject | Theory Marks | Practical / Internal Assessment | Key Sections | Types of Questions |
|---|---|---|---|---|
| English Language | 80 | 20 (School Assessment) | Composition, Directed Writing, Comprehension, Grammar | Essay, Short Answer, Grammar Exercises |
| Physics | 70 | 30 (Practical) | Mechanics, Waves, Optics, Electricity, Modern Physics | MCQ, Short Answer, Long Answer |
| Chemistry | 70 | 30 (Practical) | Physical Chemistry, Organic Chemistry, Inorganic Chemistry | MCQ, Short Answer, Long Answer |
| Biology | 70 | 30 (Practical) | Botany, Zoology, Human Biology | MCQ, Short Answer, Long Answer, Diagram-based |
| Mathematics | 80 | 20 (Project Work) | Algebra, Calculus, Statistics, Vectors, Probability | Short Answer, Long Answer |
| Computer Science | 70 | 30 (Practical) | OOP Concepts, Data Structures, Algorithms, Programming (Java/Python) | MCQ, Short Answer, Programming Questions |
| Accounts | 80 | 20 (Project Work) | Partnership Accounts, Company Accounts, Financial Analysis | Short Answer, Long Answer (Problems) |
| Economics | 80 | 20 (Project Work) | Microeconomics, Macroeconomics, Indian Economy | Short Answer, Long Answer, Data Interpretation |
| Commerce | 80 | 20 (Project Work) | Business Organization, Marketing, Human Resource Management | Short Answer, Long Answer |
| History | 80 | 20 (Project Work) | Modern Indian History, World History | Essay, Short Answer |
| Geography | 70 | 30 (Practical / Fieldwork) | Physical Geography, Human Geography, Regional Geography | Short Answer, Map Work, Data Analysis |
ISC Compartment Exam 2027 Highlights
| Feature | Details |
|---|---|
| Conducting Body | Council for the Indian School Certificate Examinations (CISCE) |
| Exam Mode | Offline (Pen and Paper) |
| Duration | 3 hours for most subjects; 2 hours for some shorter papers |
| Reading Time | 15 minutes before each theory paper |
| Maximum Theory Marks | 70 marks (Science, Computer Science, Geography) or 80 marks (English, Mathematics, Commerce subjects) |
| Passing Marks | Minimum 35% in theory AND 35% in practical/internal assessment — each component assessed independently |
| Medium | English (all subjects) |
| Internal Assessment | Carried forward from main ISC 2027 exam — no resubmission required |
| Number of Papers | Only failed subject(s) — maximum 2 subjects per student |
Previous Year Question Papers with Solutions PDF
Practising previous year ISC supplementary exam question papers is one of the most effective ways to prepare for the ISC 2027 compartment exam. These papers reveal the actual question format, marks distribution, and level of detail expected in answers. CISCE publishes previous year question papers on its official website — students can access them for all major ISC subjects. Supplementary papers closely mirror the main ISC paper style, so previous year main ISC papers are also useful for practice.
| ISC Supplementary / Compartment Question Paper | Download / Access |
|---|---|
| ISC Supplementary Papers – All Subjects (2026) | Access on CISCE Website |
| ISC Supplementary Papers – All Subjects (2025) | Access on CISCE Website |
| ISC Supplementary Papers – All Subjects (2024) | Access on CISCE Website |
| ISC Supplementary Papers – All Subjects (2023) | Access on CISCE Website |
How to use ISC previous year compartment papers effectively?
- Identify weak areas: Go through past supplementary papers for your failed subject and mark sections where marks are commonly dropped — these are the highest-return topics to revise.
- Practise under timed conditions: Attempt full papers within the actual exam duration (3 hours for most theory papers) to build speed and familiarity with real exam pressure.
- Study CISCE specimen answers: Where available, review CISCE’s model answers to understand the expected level of detail, accuracy, and structure in long-answer responses.
- Cover all question types: ISC papers combine MCQs, short answers, and long answers — practise every type your subject uses, not just the long-answer section.
ISC Compartment Exam Eligibility Criteria 2027
Only students who appeared for the ISC 2027 main examination and received a supplementary tag in their results are eligible to apply for the ISC 2027 supplementary exam. A student receives the supplementary tag if they fail in a maximum of two subjects — students who fail in three or more subjects are not eligible for the supplementary exam and must register for the next ISC cycle as private students.
Students who are eligible must appear only in the subject(s) they failed; the supplementary exam cannot be used to improve marks in already-passed subjects. Internal assessment marks and practical marks from the main ISC 2027 exam are automatically retained, so students need not reappear for projects or lab practicals.
| Criteria | Details | Key Insights |
|---|---|---|
| Exam Participation | Must have appeared for the ISC 2027 main examination. | Eligibility is restricted to ISC 2027 students only — students from other boards or prior years are not covered by this supplementary cycle. |
| Supplementary Tag | Must have received a supplementary tag in the official ISC 2027 result from CISCE. | The tag is awarded by CISCE alongside the result — students cannot self-declare eligibility. |
| Number of Failed Subjects | Failed in not more than 2 subjects in the main ISC 2027 exam. | Failing in 3 or more subjects means the student cannot appear for the supplementary exam in any subject. |
| Subjects Allowed | Only the failed subject(s) — up to 2 subjects maximum per student. | Appearing in subjects that were already passed is not permitted. |
| Practical / Internal Assessment | Practical and internal assessment marks from ISC 2027 main exam are carried forward automatically. | No reappearance is needed for labs, projects, or school-assessed components — only theory paper marks can change. |
| Passing Criteria | Minimum 35% marks in theory AND 35% marks in practical/internal assessment — each component assessed separately. | Strong practical marks cannot compensate for failing the theory paper; both thresholds must be independently met. |
| Age Limit | No separate age limit for the supplementary exam — same as the general ISC eligibility norms. | All students who received the supplementary tag are eligible regardless of age. |
What is the rule of compartment exam in ISC?
- Regular School Students: Students enrolled in CISCE-affiliated schools who appear for the ISC 2027 main examination and fail in 1 or 2 subjects receive a supplementary tag. They are automatically eligible to appear for the ISC 2027 supplementary exam in those specific failed subjects, with the application submitted through their school.
- Private Students: Students who appeared for ISC 2027 as private registrants and fail in 1 or 2 subjects are also eligible for the supplementary exam, provided they apply directly through the prescribed process on the CISCE portal within the notified application window.
- Improvement Students: The ISC supplementary exam is not available for improving marks in subjects that have already been passed. It is strictly limited to subjects in which the student received a fail or supplementary tag in the ISC 2027 result.
How many chances are given in ISC compartment?
CISCE gives students one supplementary exam opportunity in the same academic year they fail. For the 2027 cycle: the main ISC exam (February–April 2027) is the first attempt, and the supplementary exam (July 2027) is the second attempt for eligible students. If a student also fails the supplementary exam, they must appear as a private student in the following ISC main examination cycle (ISC 2028, scheduled February–April 2028). CISCE does not conduct a second supplementary exam within the same year — the July attempt is the only one available after the main result.
ISC Compartment Exam 2027: Number of Attempts
| Attempt | Tentative Schedule | Notes |
|---|---|---|
| First Attempt (Main Exam) | February – April 2027 | Regular ISC 2027 examination; all enrolled students appear |
| Second Attempt (Supplementary) | July 2027 | Only students who received supplementary tag in 1 or 2 subjects are eligible |
| Third Attempt (Private Student) | February – April 2028 | Students who also fail the supplementary must register with CISCE as private students for ISC 2028 |
ISC Compartment Exam Fee Structure
Students applying for the ISC 2027 supplementary exam must pay the applicable registration fee through the CISCE Careers portal. The fee is charged per subject and is collected by the school principal on behalf of the student, who then submits it centrally through the CISCE portal — private students pay directly. The exact fee for ISC 2027 will be announced by CISCE when the supplementary application window opens in June 2027. The table below shows indicative fees based on ISC 2026 data.
| Student Category | Fee per Subject (Indicative) | Late Fee (Additional, Indicative) |
|---|---|---|
| Schools in India | ₹500 per subject | ₹1,000 additional |
| Schools Outside India (Overseas) | US$ 30 per subject | US$ 15 additional |
Note: Fee amounts above are indicative and based on ISC 2026 data. CISCE may revise the fee structure for 2027. The confirmed fees will be published in the official supplementary exam notification on cisce.org. Fees are generally non-refundable once the application is submitted.
- Payment Mode: Fee is typically paid online through the CISCE Careers portal — schools collect the fee from students and submit it centrally on their behalf.
- Application Process: School principals fill in the supplementary exam forms for all eligible students registered at their school; private students apply and pay directly on the CISCE portal.
- Late Fee: Applications submitted after the regular deadline attract an additional late fee as prescribed by CISCE in the official notification; applications are not accepted after the late-fee deadline.
ISC Passing Marks Criteria 2027
To pass a subject in the ISC 2027 supplementary exam, students must secure the minimum passing marks in both the theory paper and the practical/internal assessment component, assessed separately. The minimum passing threshold for ISC is 35% in each component — if a student fails to meet this in either the theory or the practical, they fail the subject regardless of their combined total. This is stricter than CBSE’s 33% rule and applies independently to each assessment type — strong practical marks cannot rescue a failed theory paper.
| Subject | Theory Marks | Practical / Internal Marks | Passing Marks (Theory) | Passing Marks (Practical / Internal) | Total Passing Marks |
|---|---|---|---|---|---|
| English Language | 80 | 20 | 28 (35% of 80) | 7 (35% of 20) | 35 out of 100 |
| Physics | 70 | 30 | 25 (35% of 70, rounded up) | 11 (35% of 30, rounded up) | 36 out of 100 |
| Chemistry | 70 | 30 | 25 (35% of 70, rounded up) | 11 (35% of 30, rounded up) | 36 out of 100 |
| Biology | 70 | 30 | 25 (35% of 70, rounded up) | 11 (35% of 30, rounded up) | 36 out of 100 |
| Mathematics | 80 | 20 | 28 (35% of 80) | 7 (35% of 20) | 35 out of 100 |
| Computer Science | 70 | 30 | 25 (35% of 70, rounded up) | 11 (35% of 30, rounded up) | 36 out of 100 |
| Accounts | 80 | 20 | 28 (35% of 80) | 7 (35% of 20) | 35 out of 100 |
| Economics | 80 | 20 | 28 (35% of 80) | 7 (35% of 20) | 35 out of 100 |
| Geography | 70 | 30 | 25 (35% of 70, rounded up) | 11 (35% of 30, rounded up) | 36 out of 100 |
| History | 80 | 20 | 28 (35% of 80) | 7 (35% of 20) | 35 out of 100 |
| Commerce | 80 | 20 | 28 (35% of 80) | 7 (35% of 20) | 35 out of 100 |
Is 23 out of 70 a passing mark in ISC theory papers?
No. For ISC theory papers out of 70 marks, the minimum passing mark is 25 (which is 35% of 70, rounded up from 24.5). A score of 23 out of 70 equals 32.8%, which falls below the ISC minimum threshold of 35%. To pass a theory paper marked out of 70, a student must secure at least 25 marks. Crucially, even if the combined total across theory and practical crosses the aggregate passing mark, failing the theory component alone (scoring below 25 out of 70) results in the student failing the subject — because ISC assesses each component independently.
ISC Passing Marks — Quick Reference
| Paper / Component Type | Total Marks | 35% Passing Marks | Rounded Minimum Passing Marks |
|---|---|---|---|
| Theory Paper (Science, Computer Science, Geography) | 70 | 24.5 | 25 |
| Theory Paper (English, Mathematics, Commerce Subjects) | 80 | 28.0 | 28 |
| Practical / Fieldwork Component | 30 | 10.5 | 11 |
| Internal Assessment / Project Work | 20 | 7.0 | 7 |
ISC Grading System
CISCE reports ISC Class 12 results with actual marks out of 100 for each subject, alongside letter grades on the marksheet. The ISC grading scale uses letter grades where Grade D (marks between 35 and 44) is the minimum passing grade — a score below 35 in any subject is a fail (Grade F), and the student receives the supplementary tag if failing in a maximum of 2 subjects. The same grading system applies to the supplementary exam result; students who pass the supplementary will have their grades updated on the revised marksheet issued by CISCE.
| Grade | Marks Range | Performance Level |
|---|---|---|
| A | 75 – 100 | Distinction |
| B | 60 – 74 | Very Good |
| C | 45 – 59 | Satisfactory |
| D | 35 – 44 | Pass (Minimum Passing Grade) |
| F (Fail) | 0 – 34 | Fail — Supplementary Tag Awarded (if failing in max 2 subjects) |
Note: ISC grades are reported per subject on the marksheet. A student who passes the ISC 2027 supplementary exam will have their grade updated from F to D or higher, depending on the supplementary exam score. Students who scored Grade C or above in their project/practical carry those marks forward, which can positively influence the subject’s final grade after the supplementary result.
ISC Compartment Exam FAQs
Ques. What is the ISC compartment exam 2027?
Ans. The ISC Compartment Exam 2027 — officially called the ISC Supplementary Examination by CISCE — is a second chance examination for Class 12 students who fail in one or two subjects in the main ISC 2027 exam. Conducted by the Council for the Indian School Certificate Examinations (CISCE), it follows the same syllabus and paper pattern as the main exam. The 2027 supplementary exam is expected in July 2027, with official dates to be announced on cisce.org after the main ISC 2027 result.
Ques. Who is eligible for ISC supplementary exam 2027?
Ans. Students who appeared for the ISC 2027 main examination and received a supplementary tag in their result are eligible. The core condition is failing in a maximum of two subjects — students who fail in three or more subjects are not eligible. Both regular school students and private students who meet this condition can apply for the supplementary exam through the CISCE portal.
Ques. When is the ISC 2027 supplementary exam expected?
Ans. Based on historical CISCE patterns, the ISC 2027 supplementary exam is expected in July 2027, approximately two months after the main ISC 2027 results are declared in May 2027. In 2026, CISCE conducted the supplementary exam in July following May results — the 2027 cycle is expected to follow the same schedule. CISCE will publish the confirmed dates on cisce.org after the main result is out.
Ques. What are the passing marks for ISC compartment exam 2027?
Ans. Students must score a minimum of 35% in the theory paper AND 35% in the practical/internal assessment, with each component assessed independently. For theory papers out of 70 marks, the minimum is 25; for papers out of 80, the minimum is 28. For practicals out of 30, the minimum is 11; for internal assessments out of 20, the minimum is 7. Failing either component means failing the subject, regardless of how well you perform in the other.
Ques. What happens if I fail the ISC supplementary exam 2027?
Ans. If you fail the ISC 2027 supplementary exam, you must appear as a private student in the ISC 2028 main examination. You will need to register with CISCE as a private student, pay the applicable fees, and appear for the full exam in the failed subject(s) in February–April 2028. CISCE does not offer a second supplementary exam within the same year — the July 2027 supplementary is the only additional attempt available after the ISC 2027 main result.
Ques. Are practical and internal assessment marks carried forward to the ISC supplementary exam?
Ans. Yes. CISCE automatically carries forward all practical and internal assessment marks from the main ISC 2027 exam to the supplementary exam result. Students do not need to reappear for lab practicals, project work, or school-assessed components. Only the theory paper is retaken in the supplementary exam, and the new theory marks replace the original theory score in the final result calculation.
Ques. Can I use the ISC supplementary exam to improve marks in subjects I passed?
Ans. No. The ISC supplementary exam is strictly for students who failed in one or two subjects and received the official supplementary tag from CISCE. Students who passed all their subjects in the main ISC 2027 exam are not eligible to appear in the supplementary exam for mark improvement. CISCE does not conduct a separate improvement examination for ISC.
Ques. How do I apply for the ISC supplementary exam 2027?
Ans. The application for the ISC 2027 supplementary exam is submitted through the official CISCE Careers portal at cisce.org. For regular school students, the school principal completes the supplementary exam registration for all eligible students at the school. Private students must apply and pay directly on the CISCE portal. The application window is expected to open in June 2027, shortly after the main ISC 2027 result is declared.
Ques. What is the fee for ISC compartment exam 2027?
Ans. The confirmed fee for the ISC 2027 supplementary exam will be announced by CISCE in the official supplementary exam notification, expected in June 2027. Based on ISC 2026 data, the indicative fee is approximately ₹500 per subject for schools in India, with an additional late fee of approximately ₹1,000 if the application is submitted after the regular deadline. Overseas students are charged in US dollars. Fees are non-refundable once submitted.
Ques. Will my ISC marksheet be updated after passing the supplementary exam?
Ans. Yes. Students who pass the ISC 2027 supplementary exam will receive a revised marksheet from CISCE reflecting the updated result — the status changes from Fail/Supplementary to Pass, and the new theory marks and revised grade are shown. This updated marksheet is issued by CISCE and is fully valid for college admissions, higher education applications, and other purposes that require proof of ISC qualification.
Disclaimer: All information in this article is based on official CISCE sources and historical patterns from previous ISC supplementary exam cycles. The ISC 2027 supplementary exam dates, fees, and schedule are expected and indicative; they will be confirmed by CISCE through official notifications on cisce.org. Students should always verify details directly from the official CISCE website before taking any action. Collegedunia is not responsible for any discrepancies between the information published here and official CISCE announcements.
Comments