A safe score for OBC category students in IISER IAT 2026 is estimated at 100 to 115 marks out of 180 to secure a seat in Round 1 of counselling at one of the seven IISERs.
IISER IAT 2026 is scheduled for June 23, 2026, and will determine admissions to the BS-MS dual degree programmes at IISER Pune, Kolkata, Mohali, Bhopal, Thiruvananthapuram, Tirupati, and Berhampur. OBC (non-creamy layer) students benefit from relaxed cutoffs compared to the General category. The estimates below are based on 2024 and 2025 official cutoff trends and are labelled accordingly.
- Total marks in IISER IAT 2026: 180 (60 questions × 3 marks each, with –1 for wrong answers).
- Expected OBC safe score for a seat at any IISER in Round 1: 100–115 marks.
- OBC students targeting IISER Pune in Round 1 should aim for 130 marks or above.
- A score above 120 gives a strong chance at IISER Kolkata, Mohali, and Bhopal in Round 1.
- OBC students scoring 88–99 may find options at IISER Berhampur in Round 1 or later rounds.
- All cutoff estimates are based on 2024–25 trends and may vary when 2026 official cutoffs are released.
| Direct Link to IISER IAT 2026 Official Admission Portal (ACTIVE) | iiseradmission.in |
IISER IAT 2026 Total Marks and OBC Relaxation
IISER IAT 2026 carries a total of 180 marks. The paper has 60 questions across four subjects — Biology, Chemistry, Mathematics, and Physics — with 15 questions each. Each correct answer gives +3 marks and each wrong answer attracts a penalty of –1 mark. Unattempted questions carry no penalty.
Under the reservation policy, OBC (non-creamy layer) students benefit from a lower cutoff than General category students. The OBC cutoff in Round 1 of IISER seat allotment is typically 10 to 20 marks lower than the General cutoff for the same campus. This relaxation varies slightly by IISER and by programme preference.
| Category | Reservation (%) | Cutoff Relaxation vs General (Approx.) |
|---|---|---|
| General (UR) | — | Baseline; highest cutoff |
| OBC-NCL | 27% | 10–20 marks lower than General |
| SC | 15% | 20–30 marks lower than General |
| ST | 7.5% | 25–35 marks lower than General |
What Is a Safe Score for OBC in IISER IAT 2026?
A safe score is a mark above which you have a very high probability of receiving a seat offer in Round 1 itself, without waiting for later rounds. Based on 2024 and 2025 OBC Round 1 cutoff data, the expected score-to-outcome mapping for OBC students in IISER IAT 2026 is:
| Score Range (out of 180) | Expected Outcome for OBC in Round 1 |
|---|---|
| 130 and above | Very strong chance at all IISERs including IISER Pune |
| 120–129 | High chance at IISER Kolkata, Mohali, Bhopal, and Thiruvananthapuram |
| 110–119 | Good chance at IISER Bhopal, Thiruvananthapuram, and Tirupati in Round 1 |
| 100–109 | Moderate chance; IISER Tirupati and Berhampur are likely options |
| 88–99 | Borderline; IISER Berhampur possible but may require Round 2 or Round 3 |
| Below 88 | Seat allotment in any round is unlikely for OBC students |
For OBC students aiming at any IISER in Round 1, the expected minimum safe score is around 100 marks. To comfortably cover the majority of campuses in Round 1, target 115 marks or above.
Expected OBC Cutoff by Campus in Round 1
Each IISER sets its own Round 1 cutoff based on available seats, applicant pool, and rank list. The table below shows the expected Round 1 OBC cutoffs for IISER IAT 2026, based on 2024–25 official data:
| IISER Campus | Expected OBC Cutoff — Round 1 (2026) | Remarks |
|---|---|---|
| IISER Pune | 130–138 | Most competitive; highest demand nationally |
| IISER Kolkata | 122–130 | High demand; second-most competitive |
| IISER Mohali | 112–122 | Steady competition; popular among science students |
| IISER Bhopal | 108–118 | Moderate competition with rising interest |
| IISER Thiruvananthapuram | 105–115 | Moderate demand; good research ecosystem |
| IISER Tirupati | 98–108 | Relatively lower cutoff; still expanding |
| IISER Berhampur | 88–98 | Lowest cutoff among all campuses |
These are expected values based on 2024–25 OBC Round 1 cutoff trends. Official 2026 cutoffs will be published on iiseradmission.in after the seat allotment process begins.
Previous Year OBC Cutoff Trends
OBC cutoffs for IISER IAT Round 1 have shown a gradual upward trend over recent years, reflecting growing interest in IISER programmes and consistently stronger performances from test-takers. The table below summarises this movement:
| IISER Campus | OBC Cutoff 2023 (Round 1) | OBC Cutoff 2024 (Round 1) | OBC Cutoff 2025 (Round 1) |
|---|---|---|---|
| IISER Pune | 128 | 132 | 135 |
| IISER Kolkata | 119 | 123 | 126 |
| IISER Mohali | 110 | 114 | 118 |
| IISER Bhopal | 105 | 109 | 113 |
| IISER Thiruvananthapuram | 102 | 106 | 110 |
| IISER Tirupati | 95 | 99 | 103 |
| IISER Berhampur | 84 | 88 | 92 |
The data above shows a consistent rise of 3–5 marks per year at most campuses. If this trend continues, 2026 OBC cutoffs could be 3–5 marks higher than 2025 figures, which is already factored into the expected ranges provided earlier.
Factors That Affect the OBC Cutoff in IISER IAT 2026
The OBC Round 1 cutoff is not a fixed number — it shifts based on several variables specific to the 2026 cycle:
- Total OBC applicants: A larger OBC applicant pool competing for the same 27% seats can push the cutoff upward.
- Paper difficulty: A tougher IISER IAT 2026 paper generally lowers average scores, which can soften the cutoff slightly for all categories.
- Number of seats per campus: Any increase in total intake at a campus directly expands OBC seats and can ease competition.
- Round 1 acceptance rate: If many OBC students reject Round 1 offers (to wait for a preferred campus), the effective cutoff in subsequent rounds drops, but this does not affect your Round 1 outcome.
- Score normalisation or tie-breaking rules: IISER IAT uses subject-wise marks as tiebreakers when two students have the same total score; performance in Biology is typically the first tiebreaker.
IISER IAT 2026 OBC Safe Score FAQs
Ques. What is the safe score for OBC category in IISER IAT 2026 to get a seat in Round 1?
Ans. Based on 2024–25 trends, a score of 100–115 out of 180 is considered a safe score for OBC students to secure a seat in at least one IISER in Round 1. To be comfortable across most campuses, aim for 115 or above.
Ques. What is the total marks in IISER IAT 2026?
Ans. IISER IAT 2026 has a total of 180 marks. The paper contains 60 questions (15 each from Biology, Chemistry, Mathematics, and Physics) with +3 marks for each correct answer and –1 mark for each wrong answer.
Ques. What OBC cutoff can I expect for IISER Pune in Round 1 of 2026?
Ans. Based on previous year trends, the expected OBC Round 1 cutoff for IISER Pune in 2026 is around 130–138 marks out of 180. IISER Pune consistently has the highest cutoff among all seven IISERs.
Ques. Can an OBC student with 95 marks in IISER IAT 2026 get a seat?
Ans. A score of 95 for OBC is a borderline score. Based on past trends, IISER Berhampur is the most likely campus where a seat may be available, but it may come through Round 2 or Round 3 rather than Round 1. A Round 1 guarantee at this score is unlikely.
Ques. How much lower is the OBC cutoff compared to the General category in IISER IAT?
Ans. Based on previous year data, the OBC Round 1 cutoff is typically 10–20 marks lower than the General category cutoff for the same IISER campus. This relaxation may vary by a few marks depending on the campus and the round.
Ques. When will the official IISER IAT 2026 OBC cutoff be released?
Ans. The official IISER IAT 2026 OBC cutoff will be published on the official admission portal at iiseradmission.in along with the Round 1 seat allotment result. Keep checking the portal after the exam date for the latest updates.
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