7. (1) The passport authority may vary or cancel the endorsement on a passport or travel document or the conditions, other than the prescribed conditions, subject to which a passport or travel document is issued and may, for that purpose, require the holder of a passport or travel document, by notice in writing, to deliver up such passport or travel document to it within such time as may be specified in such notice. (2) The passport authority may impound or cause to be impounded or revoke a passport or travel document,-(a) if the passport authority is satisfied that the holder of the passport or travel document is in wrongful possession thereof;(b) if the passport or travel document was obtained by suppression of material facts;(c) if the passport authority deems it necessary to do so in the interest of sovereignty, integrity or security of Bangladesh, or in the public interest; (d) if the holder of the passport or travel document has, at any time after the issue of the passport or travel document, been convicted by a court in Bangladesh for any offence involving moral turpitude and sentenced in respect thereof to imprisonment for not less than two years or if the holder of the passport or travel document has been convicted under the Bangladesh Collaborators (Special Tribunal) Order, 1972 (P.O. No. 8 of 1972);(e) if an order has been passed by any court in Bangladesh prohibiting the departure of the holder of the passport or travel document from Bangladesh and requiring the passport authority to impound or cause to be impounded or revoke such passport or travel document;(f) if any of the conditions of the passport or travel document has been contravened;(g) if the holder of the passport or travel document has failed to comply with a notice under clause (1) requiring him to deliver up the same. (3) The passport authority may also revoke a passport or travel document on the application of the holder thereof. (4) Where the passport authority makes an order under clause (2) of Article 5 refusing to issue passport or travel document or restricting the number of countries to be endorsed upon such passport or travel document, or makes an order varying or cancelling the endorsements on, or varying the conditions of, a passport or travel document under clause (1), or makes an order impounding or revoking a passport or travel document under clause (2), of this Article, it shall record in writing a brief statement of the reasons for making such order and furnish to the person concerned on demand a copy of the same: Provided that the passport authority may refuse in the interest of the sovereignty, integrity or security of Bangladesh, or in the public interest to furnish such a copy.