What does it means if it is showing invalid Aadhaar on registering as transporter ?

This indicates that your Aadhaar Number and name in Aadhaar, as well as mobile number, have not been validated by Aadhaar. Enter correct information. The Aadhaar number does not have to be provided for the enrolment process. However, it is possible for the individual to enrol using his PAN Number.