The structural setup
NTA runs JEE Main twice a year — Session 1 (January-February) and Session 2 (April). A candidate can write both. The better of the two NTA scores is used for the JEE Advanced cutoff and the JoSAA counselling rank.
So the question isn't "which one matters more" — both can. The question is how to USE the two-session structure to maximise the final score.
What the data shows
Looking at the 2024 cycle (the most recent with complete published data):
| Metric | Session 1 (Jan-Feb 2024) | Session 2 (April 2024) | | --- | --- | --- | | Number of candidates | ~12.3 lakh | ~10.7 lakh | | Number scoring 99+ percentile | ~12,300 | ~10,700 | | Topper score | Multiple 100 percentilers | Multiple 100 percentilers | | Cutoff for JEE Advanced (General) | 93.23 percentile | 93.23 percentile (same — composite) |
Top scorers come from BOTH sessions. There's no "weaker session" — the percentile is normalised across both.
What changes between sessions
What DOES change:
- Class 12 board exam timing. Most state boards + CBSE conduct Class 12 exams in March. Session 1 lets you write JEE BEFORE boards; Session 2 lets you write AFTER. This is the biggest practical decision.
- Your own preparation maturity. Session 1 catches you at the end of Class 12 prep; Session 2 catches you 3 months later, post-boards.
- Exam paper characteristics. NTA tries to keep difficulty constant but in practice each session has slightly different focus areas (e.g., 2024 Session 2 had heavier Inorganic Chemistry).
The strategy that actually works
For students who feel "JEE-ready" by December: Treat Session 1 as the serious attempt. Aim for your target percentile here. Boards then become a pure execution exercise. Session 2 becomes the "if I get sick or have a bad day" insurance.
For students who feel "JEE-ready" only by March: Use Session 1 as a pure mock — get the test-centre experience, learn what 3 hours of JEE-pace feels like. Don't worry if the percentile is low. Focus on boards. Then use the 3 weeks between boards and Session 2 for intense revision. Session 2 is the real attempt.
For Class 12 droppers: Both sessions are serious attempts. Use Session 1 as a calibration on your year-long prep, identify weak topics, fix them in the 8-10 weeks between sessions, and peak in Session 2.
What NOT to do
Don't write Session 1 "just to see how it goes" if you actually have a real shot in Session 1. Many students sandbag the first attempt, expecting to peak in April — and then catch a fever in April and lose the year. The fail-safe direction is "take Session 1 seriously, treat Session 2 as a possible improvement", not the other way around.
Don't ignore the Session 2 gap. The 8-10 weeks between sessions is the highest-leverage prep window of the entire JEE journey for students with a tier-1 target. This is where the rank gap between candidates with similar prep widens.
For students targeting JEE Advanced specifically
The JEE Advanced qualifying percentile in 2024 was 93.23 for General. Top 2.5 lakh JEE Main candidates qualify. Practically: you need at least 93+ percentile in ONE of the two sessions. After that, your effort shifts to Advanced — a fundamentally different paper. Session 2 strategy for Advanced aspirants: if you've already crossed the qualifying percentile in Session 1, sit out Session 2 if your Advanced prep is on track. The fatigue cost of writing Session 2 can outweigh the marginal Main score improvement.
Bottom line
There is no "easier session". The session you take MORE SERIOUSLY tends to be your better score. The structure is designed to give you two shots — but it works only if you treat each shot like it's the only one, and let the better one win.