Railway RRB Non Technical Popular Categories NTPC 10+2 Under Graduate 12th Level CEN 07/ Answer Key 2026

Most rejections happen here. Avoid these five errors when filling the application form.

1. 1Signature too large or wrong formatUploading a signature above the size limit or in the wrong format. Check the notification for the exact KB range and use JPEG/PNG.
2. 2Photo with spectacles or grey backgroundMost portals insist on a recent colour photo with a plain white/light background and no spectacles or caps.
3. 3Paying the fee after the payment cutoffThe fee-payment window usually closes earlier than the final application date. Pay early — a submitted form without payment is rejected.
4. 4Wrong category certificate uploadedUploading a caste/EWS certificate in the wrong format or with an expired validity, which invalidates the category benefit.
5. 5Not saving the final application numberClosing the portal without downloading the confirmation page. Save the application number and keep a PDF/printout for future reference.