Strategy
NEET chapter-wise weightage, and how to actually use it
The weightage tables are real. The way most students use them loses marks. What the numbers say and what to do with them.
Every year a table goes around showing how many questions each chapter carried in past papers. The table is broadly real. The way most students use it costs them marks, and the difference is worth understanding before you reorganise your year around a spreadsheet.
What weightage actually measures
Weightage is a count of past questions per chapter, usually over five years. It says what NTA has asked, which predicts what it will ask about as well as any average predicts a single event: loosely. A chapter that averaged four questions can turn up with two. Anyone selling you certainty from that table is selling.
The one number that is structure, not trend
Biology is half the paper. 90 questions of 180, 360 marks of 720, as much as Physics and Chemistry combined. That is not a pattern extracted from past papers, it is how the exam is built, and it should shape your hours before any chapter-level table does.
Why "study only the heavy chapters" backfires
Two reasons, and the first one is arithmetic. NEET marks negatively: a wrong answer costs the mark plus the four you would have earned. A chapter you half-know is worse than one you never touched, because you will attempt its questions with half-confidence and bleed marks. Skipping a chapter only saves you if you also skip its questions in the hall, and almost nobody has that discipline at question 130.
Second, the table is not about you. A six-question chapter you already score well on is worth less of your time than a three-question chapter you keep failing. Weightage without your own accuracy is half an equation.
The version that works
Rank chapters by marks left on the table: roughly, how many questions the chapter tends to carry, multiplied by how much of it you are currently getting wrong. That points you at heavy chapters you are weak in, which is the only place a big score jump lives.
You can only compute that if you know your accuracy per chapter, which means practising chapter by chapter and tracking it. That is what BrainIt's per-chapter accuracy is for: all 83 chapters, each with its own past-paper questions and your own hit rate against them. When a chapter is both heavy and red, that is your week sorted. Then use a real method for the weak ones instead of rereading.
Where to check the raw numbers
Any of the big coaching tables gives you the five-year counts, and they mostly agree on which chapters are heavy. Do not memorise the table. Extract the top handful per subject, cross it against your own weak list, and get back to questions.
