NCERT JEE (Main) FLEX | Chapter-wise & Topic-wise NCERT Objective Question Bank-Mathematics

The NCERT JEE (Main) FLEX Mathematics is Oswaal's NCERT-focused JEE Main Mathematics question bank for the 2027 exam. Unlike the 25 Years book, which emphasizes maximum historical PYQ coverage, FLEX is designed to connect NCERT concepts + NCERT Exemplar + JEE Main PYQs in a chapter-wise and topic-wise format.

It includes the January and April 2026 JEE Main papers with solutions, along with Oswaal AI learning support.The central philosophy is:

NCERT → NCERT Exemplar → JEE Main PYQs → practice → revision

This makes it different from the JEE Main 25 Years Mathematics book you asked about earlier.

25 Years Mathematics

2002–2026 → 1,850+ questions → maximum PYQ coverage

FLEX Mathematics

NCERT + Exemplar + 2011–2026 PYQs → 1,300+ questions → NCERT-integrated preparation

So FLEX is more of a concept-linked question bank, while the 25 Years book is more of an exhaustive PYQ bank.