If you are short on time and want to prepare smartly, this page gives you the most important topics for IAT 2026 across Mathematics, Biology, Chemistry, and Physics. These are the chapters you should prioritise first before moving to broader syllabus coverage. The easiest way to use this list is simple: finish these chapters first, revise NCERT properly, […]

Biology is one of the highest ROI subjects in the IISER Aptitude Test (IAT). The smartest way to improve your Biology score is not by studying every chapter equally, but by first targeting the modules that are easy to understand, quick to revise, and repeatedly asked in IAT. Based on long-term Biology trends, some modules

IAT 2026 Registration: The 3 Document Mistakes That Can Ruin Your IISER Dream With less than 2 days to go before the IAT 2026 registration portal officially opens on March 5th, the excitement (and nerves) are real! You’ve likely spent months grinding through mock tests, revising NCERTs, and solving PYQs. Hard Truth: Your mock test

The best 100-day strategy for IAT 2026 is a structured 3-phase plan: 35 days of foundation, 40 days of PYQs, and 25 days of mock tests. This approach helps you maximise marks even if you are starting late. You don’t need perfect preparation – you need exam-ready preparation. If you prepare smartly, 100 focused days

Explore IAT chapter-wise weightage from 2017–2025 with detailed subject-wise trend analysis. Identify consistently high-weightage chapters, understand exam patterns, and build a smarter, priority-based IAT preparation strategy for better scores.

IAT Physics is not about long derivations or heavy calculations – it is about conceptual clarity, logical reasoning, and smart elimination. An analysis of IAT Physics papers from 2017 to 2025 reveals consistent unit-wise patterns and predictable scoring opportunities.

IAT Chemistry is not about memorising reactions or solving lengthy numericals – it is about conceptual clarity, NCERT alignment, and smart question selection. An analysis of IAT Chemistry papers from 2017 to 2025 reveals stable unit-wise trends and predictable scoring opportunities.

IAT Mathematics is not about solving the toughest problems – it is about choosing the right problems under time pressure. An analysis of IAT Mathematics papers from 2017 to 2025 reveals clear chapter-wise trends, repeated problem templates, and predictable scoring opportunities.

IISER has officially announced the IAT 2026 important dates for admission to its undergraduate science programmes. Candidates planning to appear for the IISER Aptitude Test (IAT) 2026 should carefully note the application timeline and exam schedule. Below is the complete and officially released schedule for IAT 2026, including application dates, correction window, hall ticket release, and the examination date. IAT 2026 will be conducted across multiple test centres in India, including centres accessible to students from Kerala and other states.

Preparing for the IISER Aptitude Test (IAT) without understanding chapter-wise weightage is like studying in the dark. Over the years, IAT Biology has shown clear trends – some chapters appear almost every year, while others are rarely touched. In this blog, we analyse IAT Biology questions from 2017 to 2025, identify high-weightage chapters, and suggest how aspirants should prioritise preparation. This analysis is especially useful for Class 11–12 students and droppers preparing for IAT 2026 using NCERT Biology.