Dear Sonia, thats a very unfortunate mishap that has happened. To add on, the last date for the correction window closed on January 22nd. To be honest, its beyond your hands now. If your application status says 'Accepted', you cannot make any further changes to the application now. Please check in the admit card (when it is released) the signature. The authorities ask you to notify them if there is a mismatch. Then you have a chance to inform them that the signature is incorrect. You might have a chance there. If that doesn't work, keep a copy of the mail that you will send the authorities regarding mismatch in the signature and take it along with you to the exam hall. The authorities will need your signature to validate in the examination hall. If there is a mismatch in the signature, they might still consider allowing you as per the Id proof that you carry with you. And it is not a guarantee that things might turn in your favour but just an approach to get it fixed.