Amendment status not verified — confirm the current text below against the official source.
If the notice given under section 428 and the documents, if any, furnished under section 429 do not supply all the information which the Commissioner deems necessary to enable him to deal satisfactorily with the case, the Commissioner may, at any time within thirty days after receipt of the said documents, by written notice, require the production of such further particulars and details as he deems necessary.