When the appropriate assessing authority upon receiving information, is satisfied that the certificate of registration granted to a dealer under sub-section (2), or sub-section (2A), of section 24 is liable to be cancelled for any of the reasons mentioned in clause (a), clause (b), clause (c), clause (d), clause(e) or clause (f), of sub-section (1) of section 29, he shall, after giving the dealer an opportunity of being heard, cancel the certificate of registration of such dealer under sub-section (1) of section 29 and such cancellation will take effect from the date of such order.