i got en email for incorrect signature but was not able to correct it before 7th of December now what to do?? shall i not able to give neet pg? or else what ??pls help me in this.

You receive a notification only if the uploaded image doesn't comply with NBE's guidelines and it is impirtant to change for the application to be approved and to get an admit card. Now that you didn't edit the Signature image, the incorrect image would be retained in the system and the application will be cancelled and so ypu will not get an admit card. And without an admit card, you cannot appear for NEET PG.