7. Validity of Registration.
The registration under these rules shall be valid as long as the registration under the Sales Tax Act is valid. Unless the registration granted under the Sales Tax Act is cancelled or the renewal is refused, the registration under these rules shall be deemed to be valid.
The registration certificate of a dealer granted under sub-rule (3) of rule 4 on an application made under the proviso to sub-rule (1) thereof shall remain valid until the same is cancelled and, for the purpose of such cancellation, the procedure under the Sales Tax Act relating to the cancellation of registration certificate under that Act shall mutatis mutandis apply