PrepGen.ai now supports JEE Main Paper 1 (B.E./B.Tech.), the national engineering entrance conducted by the National Testing Agency for NITs, IIITs and other centrally funded institutions, and the qualifying exam for JEE Advanced. With Session 1 of JEE (Main) 2027 in January, you can start chapter-wise Physics, Chemistry and Mathematics practice today, then move on to full-length mocks.
Every Unit of the Syllabus
The question bank is organised into 54 topics that follow the units of the JEE Main syllabus:
- Mathematics (14 topics): from sets, relations and functions through complex numbers, matrices, calculus and differential equations to coordinate geometry, 3D geometry, vectors, statistics and probability, and trigonometry.
- Physics (20 topics): from units and measurements and kinematics through rotational motion, thermodynamics, electrostatics and electromagnetic induction to optics, modern physics, electronic devices and experimental skills.
- Chemistry (20 topics): physical, inorganic and organic chemistry, from atomic structure and chemical bonding to coordination compounds, organic compounds containing halogens, oxygen and nitrogen, biomolecules and practical chemistry.
Both Question Types, in the Paper's Proportions
Each subject in JEE Main has two sections: Section A with multiple-choice questions and Section B with numerical-value questions. The PrepGen.ai bank carries both in the same four-to-one mix. For a Section B question you work the answer out and enter a value, with no options to eliminate. That is the habit worth building before January.
An Explanation for Every Option
Every multiple-choice question explains all four options, not just the correct one. Each wrong option is tied to the slip that produces it, such as a misread unit prefix, a dropped sign or a confused formula. When you pick it, you learn exactly what went wrong. Every numerical-value question comes with a worked solution.
Full-Length Mocks
A full-length mock follows the shape of Paper 1: 25 questions per subject (20 multiple-choice and 5 numerical-value), 75 in all, timed at 60 minutes per subject for three hours in total. Questions span beginner, intermediate and advanced difficulty, so a mock tells you which chapters hold up under pressure and which only work when you have time to spare.
JEE Main 2027 Session 1: Key Dates
From NTA's public notice for JEE (Main) 2027 Session 1:
- Online applications close November 22, 2026 (11:50 PM IST), with a late window until November 26, 2026 for a late fee of Rs. 500.
- Admit cards are expected from January 13, 2027.
- Session 1 exams run on January 20 to 24 and January 28, 2027.
- Session 2 is scheduled for April 2 to April 7, 2027 (tentative), with its own application window.
The full timeline and exam pattern are on our JEE Main exam page.
Get Started
- Log in at prepgen.ai or open the PrepGen.ai app.
- Go to College Exams and select JEE Main.
- Take a timed subject section to set a baseline in Physics, Chemistry and Mathematics.
- Follow the topic-level analytics and drill the chapters they flag.
Applications, fees, exam cities and admit cards are handled only by NTA at jeemain.nta.nic.in. Check the Information Bulletin there for eligibility and the marking scheme before you apply.