The official answer-key process
1
Provisional answer key + response sheet
NTA publishes the provisional key with your recorded responses on jeemain.nta.nic.in.
2
Challenge window
Challenge any answer within the window by paying a per-question fee (refunded if your challenge is accepted).
3
Final answer key
After review, NTA releases the final key — results are computed from it.
4
Result & percentile
Your NTA percentile score is calculated from the final key.
Estimate your score early
Once the provisional key is out, tally your responses: (correct × 4) − (wrong × 1). This gives a close raw-mark estimate before the official percentile.
Full worked solutions & practice
Practise JEE questions with step-by-step solutions, then predict your rank from your expected percentile.