Scoring 150 marks in IISER IAT 2026 out of a total of 240 marks puts you at 62.5% and is expected to fetch a General category rank in the range of 700–1,500 — a position that opens doors to most IISER campuses across India.
IISER IAT 2026 was held on June 7, 2026, and the provisional answer key was released the same day. With the official merit list expected around June 23, 2026, students who attempted the paper are now mapping their scores to likely ranks and college options. A score of 150 out of 240 sits in a competitive zone — prep experts and IAT trend analyses widely regard 150+ as the new safe threshold for securing at least one IISER seat in the General category.
- IISER IAT 2026 total marks is 240 — 60 questions, +4 for correct, ?1 for wrong.
- 150 marks equals 62.5% of the total and places you in the upper-mid competitive band.
- Expected General category rank for 150 marks: approximately 700–1,500 (based on 2024–25 IAT trends).
- Based on 2024 IAT closing ranks, 150 marks is expected to secure seats at IISER Kolkata, Mohali, Bhopal, Thiruvananthapuram, Tirupati, and Berhampur.
- IISER Pune — the most competitive campus — had a 2024 General closing rank of ~1,023, making it borderline for this score.
- Students in reserved categories (OBC-NCL, SC, ST) scoring 150 marks will have significantly stronger admission prospects across all IISERs.
| Direct Link — IISER IAT 2026 Official Admissions Portal: iiseradmission.in |
IISER IAT 2026 Total Marks and Exam Pattern
Before reading into what 150 marks means for your admission, you need to know the paper’s full structure. IISER IAT 2026 is a computer-based test with a total of 240 marks spread equally across four science sections.
| Section | Questions | Correct Answer | Wrong Answer | Section Maximum |
|---|---|---|---|---|
| Physics | 15 | +4 | ?1 | 60 |
| Chemistry | 15 | +4 | ?1 | 60 |
| Mathematics | 15 | +4 | ?1 | 60 |
| Biology | 15 | +4 | ?1 | 60 |
| Total | 60 | — | — | 240 |
To score exactly 150 with no wrong answers, you need to correctly attempt 37–38 questions out of 60 (37 × 4 = 148; 38 × 4 = 152). Wrong answers reduce your score further, so accurate attempts matter as much as volume. There is no penalty for unattempted questions.
Expected Rank for 150 Marks in IISER IAT 2026
Based on IISER IAT 2024 and 2025 admission trends, a score of 150 out of 240 is expected to fetch a General category rank between approximately 700 and 1,500. The exact rank depends on the difficulty level of the June 7 paper and the overall score distribution among all test takers — this is confirmed only when the official merit list is released.
| Score Range (out of 240) | Expected Rank — General Category (Based on Past Year Trends) |
|---|---|
| 210–240 | 1–100 |
| 190–209 | 101–300 |
| 170–189 | 301–600 |
| 160–169 | 601–900 |
| 140–159 (your score: 150 falls here) | 700–1,500 (expected) |
| 120–139 | 1,500–3,000 |
| 100–119 | 3,000–5,500 |
| Below 100 | Above 5,500 |
IISER IAT 2025 saw notable rank inflation compared to 2024 — scores that comfortably secured top IISERs in 2024 produced significantly higher ranks in 2025. The 2026 scenario will become clear once the official merit list is published on the IISER admissions portal.
Category-Wise Rank and Admission Chances for 150 Marks
IISER IAT merit lists are published separately for each reservation category. If you belong to a reserved category, 150 marks places you in a considerably stronger admission position than the General rank alone indicates.
| Category | Expected Rank for 150 Marks (Based on Past Trends) | Admission Outlook |
|---|---|---|
| General (UR) | 700–1,500 | Good for most IISERs; Pune is borderline |
| EWS | 400–800 | Good chances including IISER Pune |
| OBC-NCL | 300–700 | Strong chances at all 7 IISERs |
| SC | 100–300 | Excellent chances at all 7 IISERs |
| ST | 50–150 | Very high probability of securing a seat |
All rank estimates above are expected figures based on 2024–25 IAT admission data. Actual category-wise ranks for 2026 will be published with the official merit list on the IISER admissions portal around June 23, 2026.
College-Wise Admission Chances with 150 Marks in IISER IAT 2026
All seven IISERs offer the same 5-year BS-MS Dual Degree programme, but admission competitiveness varies sharply by campus. IISER Pune is the most sought-after campus, and IISER Berhampur typically closes at the highest (most accessible) rank based on historical IAT seat allotment data.
| IISER Campus | 2024 IAT Closing Rank — General (Last Round) | Chances at Est. Rank 700–1,500 |
|---|---|---|
| IISER Pune | ~1,023 | Borderline — possible if your rank is below 1,023 |
| IISER Kolkata | ~1,801 | Good chance |
| IISER Mohali | ~3,034 | Excellent chance |
| IISER Bhopal | ~3,136 | Excellent chance |
| IISER Thiruvananthapuram | ~3,447 | Excellent chance |
| IISER Tirupati | ~4,325 | Excellent chance |
| IISER Berhampur | ~4,484 | Excellent chance |
Closing ranks above are sourced from the final round of IISER IAT 2024 counselling and serve as the nearest confirmed reference for 2026 estimates. Actual 2026 closing ranks will vary by counselling round and will be published after each round of seat allotment on the official IISER admissions portal.
How IISER IAT 2026 Rank is Calculated
Understanding the rank calculation process helps set realistic expectations after scoring 150 marks.
- Raw Score: Your total marks out of 240 — computed as (correct answers × 4) minus (wrong answers × 1). Unattempted questions carry zero marks.
- Normalisation: If the IAT 2026 is conducted in more than one shift, scores are normalised across shifts so students from different sessions are compared fairly.
- Rank Assignment: Students are ranked in descending order of normalised score. In case of a tie, the older student is ranked higher, or another criterion from the official brochure is applied.
- Separate Category Merit Lists: Individual merit lists are published for General, EWS, OBC-NCL, SC, ST, and PwD sub-categories. Seats at each IISER are allotted from the respective category pool during counselling rounds.
- Two Admission Channels: IISERs admit students via the IAT channel and the JEE Advanced channel. Ranks from both channels are independent and cannot be compared or substituted.
Alternatives if Your IISER IAT 2026 Score is Low
If your score falls below the expected cutoff for your target IISER, several strong pathways exist for students who want to pursue basic sciences at a reputed institution.
| Alternative | Programme | Admission Route |
|---|---|---|
| IISERs — JEE Advanced Channel | BS-MS Dual Degree (all 7 IISERs) | Top JEE Advanced rankers qualify directly — no IAT required |
| IISc Bangalore | BS Research (4 years) | JEE Advanced rank or board merit (state toppers) |
| Delhi University | BSc Honours — Physics, Chemistry, Maths, Biology | CUET UG score |
| BHU Varanasi | BSc (Hons) / Integrated MSc | CUET UG / BHU entrance |
| Jadavpur University | BSc Science Programmes | WBJEE / Class 12 merit (West Bengal students) |
| Ashoka University / Krea University | BSc / Liberal Arts with Sciences | Institution-specific entrance |
| Re-attempt IAT 2027 | BS-MS at all 7 IISERs | IAT is held once a year; eligible if Class 12 criteria are met |
Students who missed the IAT cutoff but are strong in science should consider building a JEE Advanced rank simultaneously. A competitive JEE Advanced rank creates a dual pathway — direct entry to IISERs through the JEE channel and IIT admission in parallel.
IISER IAT 2026 Marks vs Rank FAQs
Ques. What is the total marks of IISER IAT 2026?
Ans. The total marks of IISER IAT 2026 is 240. The exam has 60 questions across four sections — Physics, Chemistry, Mathematics, and Biology — with +4 marks for each correct answer and ?1 for each wrong answer. Unattempted questions carry no penalty.
Ques. Is 150 marks a good score in IISER IAT 2026?
Ans. Yes, 150 out of 240 (62.5%) is a solid, above-average score. IAT prep experts regard 150+ as the new safe zone for securing at least one IISER seat in the General category. Based on past IAT admission trends, this score is expected to yield a General category rank in the range of 700–1,500.
Ques. Which IISERs can I get with 150 marks as a General category student?
Ans. Based on 2024 IAT closing ranks (the most recent confirmed data), a score of 150 marks with an expected General rank of 700–1,500 gives good to excellent chances at IISER Kolkata (closing rank ~1,801), Mohali (~3,034), Bhopal (~3,136), Thiruvananthapuram (~3,447), Tirupati (~4,325), and Berhampur (~4,484). IISER Pune (closing rank ~1,023) is borderline and depends on your exact rank.
Ques. When will the IISER IAT 2026 result be announced?
Ans. IISER IAT 2026 was conducted on June 7, 2026. The provisional answer key was released the same day, and the objection window closed on June 13, 2026. The official result and merit list are expected to be published around June 23, 2026 on the official portal at iiseradmission.in.
Ques. Can rank inflation affect my chances with 150 marks in 2026?
Ans. Yes, rank inflation is a real factor in IISER IAT. IAT 2025 saw significant rank inflation — scores that comfortably placed students in top IISERs in 2024 led to much higher (worse) ranks in 2025. The actual rank for 150 marks in 2026 will depend on the difficulty of the June 7 paper and the overall score distribution, confirmed only with the merit list.
Ques. What should I do if my IISER IAT 2026 score is below 150?
Ans. If your score is below the expected cutoff, consider the IISERs JEE Advanced admission channel, IISc Bangalore BS Research programme, BSc Honours at Delhi University or BHU via CUET UG, Jadavpur University via WBJEE, or institutions like Ashoka and Krea University. You may also re-appear for IAT 2027 if you meet the Class 12 eligibility criteria.
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