where is acknowledgement number in pan card

The acknowledgement number for your PAN application is found on the acknowledgement slip or form that you receive after successfully submitting your application. This unique number is a 15-digit code if you applied through NSDL, or a 9-digit coupon number if applied through UTIITSL. For online applications, this slip is typically sent to your registered email address as a confirmation receipt immediately after submission. For offline applications, the agent processing your form provides the physical slip. You use this number to track the status of your PAN application online.