Conducting Body: Indian Institutes of Science Education and Research (IISERs) National Level Entrance Exam 2026
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IISER IAT: IISER Aptitude Test

Comprehensive student gateway for 5-Year BS-MS Dual Degree across 7 IISERs (Pune, Kolkata, Mohali, Bhopal, Thiruvananthapuram, Tirupati, Berhampur) & IISc BS admissions. Access official registration schedule, question papers with solutions, cutoff ranks, college predictors, and counselling guides.
5-Year BS-MS Dual Degree across 7 IISERs (Pune, Kolkata, Mohali, Bhopal, Thiruvananthapuram, Tirupati, Berhampur) & IISc BS Duration: 3 Hours (180 Minutes) Mode: Computer Based Test (CBT) Total Marks: 240 Frequency: Once a Year (June) Fee: ?2,000 (General/OBC) / ?1,000 (SC/ST/PwD)
240
Total Score
10
PYQ Papers (PDF)
10
Cutoff Records
3 Hours (180 Minutes)
Time Allotted
National
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Marks vs Percentile Matrix AIR Rank Range Table Shift Normalization Process Tie-Breaking Rules Live Rank Estimator Rank Predictor FAQs

IISER IAT Marks vs Rank vs Percentile Matrix 2026

Total Scale: 240 Marks

Comprehensive analysis converting raw score estimates into projected Percentiles and All India Ranks (AIR) for IISER IAT.

Estimated Marks Expected Percentile Projected AIR Rank Admission Prospects Tier Candidate Status
223 - 240 99.95 - 100.00 %ile 1 - 100 Top IITs / Top AIIMS / Top NITs / Top NLUs Exceptional
204 - 222 99.50 - 99.94 %ile 101 - 1,500 Tier 1 Top Branches (CSE, ECE, MBBS, MBA) Top 0.5%
180 - 203 98.50 - 99.49 %ile 1,501 - 5,000 Top 10 NITs / GMCs / Tier-1 Core Branches High Merit
156 - 179 96.00 - 98.49 %ile 5,001 - 15,000 Premier State Govt / Established NITs / IIITs Very Good
132 - 155 92.00 - 95.99 %ile 15,001 - 35,000 Top Autonomous & State Universities Competitive
108 - 131 85.00 - 91.99 %ile 35,001 - 65,000 Mid NITs / Reputed Private Colleges Above Average
84 - 107 75.00 - 84.99 %ile 65,001 - 1,20,000 State Counselling Seats / Self-Financing Qualifying Range
Below 84 < 75.00 %ile > 1,20,000 Management Quota / Private Universities Needs Improvement

Shift Normalization Formula Explained

To ensure total equity across multiple examination shifts with varied difficulty levels, conducting authorities employ NTA's percentile normalization formula:

Percentile (P) = (100 × m) / N

Where m is the total number of candidates who scored equal to or less than you in your shift, and N is the total count of candidates who appeared in that session. Percentile scores are calculated up to 7 decimal places to prevent ties.

Frequently Asked Questions (FAQs) – Rank Predictor

How is percentile calculated from raw marks in IISER IAT?
Percentile Score = (100 × Number of candidates who scored equal to or less than you in your shift) / (Total candidates who appeared in that shift).
How are ties broken when two candidates obtain identical marks in IISER IAT?
Ties are resolved based on predefined rules: higher marks in core subjects (e.g., Mathematics in JEE, Biology in NEET), fewer negative responses, and age (older candidate given preference if specified).

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