JEE Main photo, 10–200 KB
Use a colour photo on a white background. Keep the ears in the frame and let the face fill most of it.
The signature is a wide strip, not this portrait. A live photo on the NTA form is a separate step.
What usually goes wrong
Do not wear a mask. Do not leave a large empty margin around the head.
What this page checks
JPEG, 10–200 KB, exported at 413×531 pixels for a 3.5 cm × 4.5 cm frame. Read the session bulletin before you upload.