Hello,

Yes, you may still be eligible for the IBPS prelims exam. Here’s a detailed answer:

1. Registration Details : The name on the registration form should ideally match your official documents.
2. Correction Window : If IBPS allows corrections or modifications during an application correction window, you can update missing details, including your surname.
3. ID Proof Check : On the exam day, your ID proof will be checked. Ensure that the name on your ID matches your application as closely as possible.
4. Contact IBPS : For specific queries or discrepancies, contacting the IBPS helpline or checking their official notification can provide guidance.
5. Document Verification : Final eligibility will be verified during the document verification stage after the prelims

for more information regarding the exam, you can visit : https://competition.careers360.com/articles/ibps-po-eligibility-criteria

Hope it helps !