Scoring 150 marks in IISER IAT 2026 is expected to place you in the General category rank range of approximately 400 to 800, based on trends from IAT 2024 and 2025 — giving you solid admission chances at IISER Bhopal, Mohali, Thiruvananthapuram, and Tirupati, with borderline chances at IISER Kolkata and limited chances at IISER Pune.
IISER IAT 2026 was conducted on June 7, 2026, and the provisional answer key was released on the same day at iiseradmission.in. Students can now calculate their expected scores using the answer key and response sheet. The IISER IAT 2026 result is expected in the fourth week of June 2026. With a total of 240 marks (60 questions, 4 marks each), a score of 150 represents 62.5%, which sits at the lower end of the safe zone for top IISERs.
- IISER IAT 2026 was conducted on June 7, 2026; result is expected around June 19–25, 2026.
- The maximum score in IISER IAT 2026 is 240 marks (60 questions × 4 marks each).
- 150 marks out of 240 equals 62.5%, placing you at the lower end of the safe zone.
- General category students scoring 150 marks can expect a rank of approximately 400–800 based on IAT 2024–25 trends.
- Reserved category students with 150 marks receive significantly lower category ranks, strengthening admission chances at top IISERs.
| Direct Link — IISER IAT 2026 Provisional Answer Key (OUT) | Official Portal: iiseradmission.in |
IISER IAT 2026 Marking Scheme and Total Marks
IISER IAT 2026 is a computer-based test with 60 multiple-choice questions across four sections — Biology, Chemistry, Mathematics, and Physics — each carrying 15 questions. The total marks for IISER IAT 2026 is 240, with 4 marks awarded for every correct answer and 1 mark deducted for every wrong answer. Unattempted questions carry zero marks.
| Parameter | Details |
|---|---|
| Exam Date | June 7, 2026 (Conducted) |
| Total Questions | 60 (15 each from Biology, Chemistry, Mathematics, Physics) |
| Marks per Correct Answer | +4 |
| Marks per Wrong Answer | −1 |
| Unattempted Questions | 0 (no penalty) |
| Maximum Marks | 240 |
| Exam Duration | 180 minutes |
| Result Expected | 4th week of June 2026 (tentative) |
Expected Rank for 150 Marks in IISER IAT 2026
Based on IAT 2024 and 2025 trends, scoring 150 marks out of 240 is expected to correspond to a General category rank of approximately 400 to 800 in IISER IAT 2026. This estimate may shift depending on the overall difficulty of IAT 2026 and the total number of students who appeared.
In IAT 2025, many students who expected top-1000 ranks with scores of 120–140 found themselves ranked much lower due to rank inflation caused by a larger pool of high scorers. Students should use the table below as an indicative reference only.
| Score Range (out of 240) | Expected General Rank (Approx.) |
|---|---|
| 210–240 | 1–50 |
| 190–209 | 51–150 |
| 170–189 | 151–300 |
| 160–169 | 301–500 |
| 150–159 | 401–800 |
| 140–149 | 801–1200 |
| 130–139 | 1201–2000 |
| 120–129 | 2001–3000 |
| Below 120 | 3001 and beyond |
All rank figures above are based on IAT 2024–25 trends and are expected estimates. Actual ranks will be published on the IISER Admission Portal after the result is declared.
Category-wise Expected Rank at 150 Marks in IISER IAT 2026
IISER IAT publishes both an overall rank and a category rank on the merit list. For reserved category students, admission in reserved-quota seats is governed by the category rank. At 150 marks, reserved category students can expect substantially lower category ranks, improving their admission prospects at top IISERs.
| Category | Expected Overall Rank | Expected Category Rank |
|---|---|---|
| General (UR) | 400–800 | 400–800 |
| OBC-NCL | 400–800 | 150–300 |
| SC | 400–800 | 60–120 |
| ST | 400–800 | 25–60 |
| PwD | 400–800 | 10–30 |
These are expected figures based on previous-year category-wise participation data. The category rank pool is smaller, which is why category ranks are substantially lower than the overall rank for the same score.
IISER Admission Chances with 150 Marks in IAT 2026
Students scoring 150 marks in IISER IAT 2026 are expected to have good admission chances at IISER Bhopal, Mohali, Thiruvananthapuram, Tirupati, and Berhampur, with borderline chances at IISER Kolkata and limited chances at IISER Pune in the General category. Seat allotment is done through centralised counselling after the merit list is published on the IISER Admission Portal.
| IISER | Expected Closing Rank — General (Based on 2024–25 Trends) | Admission Chances for Rank ~400–800 |
|---|---|---|
| IISER Pune | ~150–300 | Limited / Risky |
| IISER Kolkata | ~300–600 | Borderline |
| IISER Bhopal | ~500–900 | Good |
| IISER Mohali | ~500–1000 | Good |
| IISER Thiruvananthapuram | ~600–1100 | Good |
| IISER Tirupati | ~600–1200 | Good |
| IISER Berhampur | ~700–1400 | Good |
OBC-NCL students with an expected category rank of 150–300 and SC students with a category rank of 60–120 can find competitive options at IISER Pune and Kolkata under their reserved quotas. Fill all seven IISERs during counselling to maximise your chances.
How Is IISER IAT 2026 Rank Calculated?
IISER IAT rank is determined entirely by your total score in the 60-question paper. The exam is held in a single session with no normalisation. Ranks are assigned in descending order of total marks — the highest scorer receives Rank 1.
- Total Score = (Correct answers × 4) − (Wrong answers × 1)
- Unattempted questions carry zero marks — no penalty for leaving them blank.
- In the case of a tie, both students receive the same rank.
- Your overall rank and category rank are both published on the official portal after results.
Once IISER IAT 2026 result is declared, log in to iiseradmission.in to check your rank card, scorecard, and counselling schedule.
IISER IAT 2026 Marks vs Rank FAQs
Ques. What is the total marks in IISER IAT 2026?
Ans. The total marks in IISER IAT 2026 is 240. The exam has 60 multiple-choice questions — 15 each from Biology, Chemistry, Mathematics, and Physics — with 4 marks for each correct answer and a deduction of 1 mark for each wrong answer.
Ques. What rank can I expect with 150 marks in IISER IAT 2026?
Ans. Based on IAT 2024 and 2025 trends, 150 marks out of 240 is expected to correspond to a General category rank of approximately 400 to 800. The actual rank will be published on the IISER Admission Portal after the result is declared.
Ques. Is 150 out of 240 a good score in IISER IAT 2026?
Ans. A score of 150 out of 240 (62.5%) is considered to be at the lower end of the safe zone. It offers good admission chances at IISER Bhopal, Mohali, Thiruvananthapuram, Tirupati, and Berhampur but may fall short for IISER Pune in the General category based on previous-year closing rank trends.
Ques. When will IISER IAT 2026 result be declared?
Ans. IISER IAT 2026 result is expected in the fourth week of June 2026, tentatively around June 19–25, 2026. Students can download their rank card and scorecard from iiseradmission.in once the result is out.
Ques. Can SC and OBC students with 150 marks get into IISER Pune?
Ans. Yes, SC students scoring 150 marks are expected to receive a category rank of around 60–120, which can make them eligible for IISER Pune and Kolkata under the SC reserved quota. OBC-NCL students at this score can expect a category rank of 150–300, giving them strong chances at IISER Kolkata and good chances at other IISERs under the OBC quota.
Ques. How do I calculate my IISER IAT 2026 score using the answer key?
Ans. To calculate your score, count the number of correctly answered questions (each earns +4 marks) and subtract the number of wrong answers (each deducts 1 mark). The sum of these gives your raw score out of 240. The provisional answer key is available at iiseradmission.in.
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