The Last 60 Days Before the CBSE Class 12 Boards: A Subject-by-Subject Plan

Class 12 does not forgive the same mistake Class 10 does. The syllabus is longer, the numericals are heavier, and a chapter you "mostly remember" in Physics or Chemistry usually means you remember the theory and not the one step that actually carries the marks. Sixty days is enough time to fix that — if the days are not spent re-reading chapters you already know.

Week 1-2 — diagnose subject by subject

Take one timed paper in each subject before you revise anything. Not the easy chapters — a full paper, board pattern, board timing.

The result tells you something Class 10 revision rarely needed: which subject is actually behind, not which subject feels behind. Physics and Maths often feel harder because the problems are longer, but the marks lost are frequently in Chemistry — an equation misremembered, a mechanism half-learned — because it is the subject students assume needs the least time.

Write down, per subject, the chapters where marks were lost. That list, not the textbook index, is your syllabus for the next month.

Week 3-6 — the subject split

Physics and Maths reward practice over reading. A concept you can state but cannot apply in a numerical is not learned. For every weak chapter, work problems until a specific type of mistake — sign error, wrong formula, missed unit — stops happening, not until you feel finished.

Chemistry splits in three and each part needs a different method. Physical Chemistry is numerical, like Physics — practise it the same way. Organic Chemistry is mechanism and reasoning; work through reaction sequences by hand rather than memorising outcomes. Inorganic Chemistry is the most memory-heavy part of the entire Class 12 syllabus — trends, exceptions, coordination compound naming — and it rewards short, frequent revision far more than one long session.

Biology (for students carrying it) is dense with terminology and diagrams. Genetics and Molecular Basis of Inheritance in particular are unforgiving of vague language — the board wants the precise term, not a description of it. Revise by writing definitions and diagrams from memory, then checking, not by re-reading the chapter.

Do previous year questions for a chapter the same day you finish revising it, in every subject. The board's Class 12 papers repeat concepts across years more than students expect, especially in numerical-heavy chapters and in Chemistry's named reactions.

Week 7-8 — full papers, every subject, on rotation

One full timed paper a day, rotating through all subjects, marked the same day. By this point the goal is not new knowledge — it is finishing a 3-hour paper without running out of time in the last section, which is where Class 12 students most often lose marks they were capable of scoring.

What not to do

Do not give every subject equal time by default. Give time in proportion to marks lost in Week 1's diagnostic papers, not in proportion to how each subject feels. Chemistry's Inorganic section and Biology's terminology-heavy chapters are the two most commonly under-revised areas because neither feels difficult while reading — only when answering.