¹[7A.(1) The Commissioner may, either of his own motion or on application, call for the records of any case at any time, and may, after examining such records and making such inquiry, if any, as he thinks fit, revise any order of the Collector under this Act, other than an order against which an appeal lies under section 6A or section 7. (2) The ²[Board of Land Administration] may, either of its own motion or on application call for the records of any case at any time, and may, after examining such records and making such inquiry, if any, as it thinks fit, revise any order of the Collector or of the Commissioner under this Act: Provided that neither the Commissioner nor the ³[Board of Land Administration] shall, after a reference has been made under sub-section (1) of section 5, pass any order under this section affecting the order of attachment made by the Collector under sub-section (1) or sub-section (1a) of section 3.]