4. (1) The Government may, if in its opinion the public interest so requires, revoke a license in any of the following cases, namely:(a) where the licensee, in the opinion of the Government, makes wilful and unreasonably prolonged default in doing anything required of him by or under this Act;(b) where the licensee breaks any of the terms or conditions of his license the breach of which is expressly declared by such license to render it liable to revocation; (c) where the licensee fails, within the period fixed in this behalf by his license or any longer period which the Government may substitute therefor by order under sub-section (3), clause (b), and before exercising any of the powers conferred on him thereby in relation to the execution of works,(i) to show, to the satisfaction of the Government, that he is in a position fully and efficiently to discharge the duties and obligations imposed on him by his license, or(ii) to make the deposit or furnish the security required by his license;(d) where the licensee is, in the opinion of the Government, unable, by reason of his insolvency, fully and efficiently to discharge the duties and obligations imposed on him by his license;(e) where the licensee is, in the opinion of the Government, unable to supply energy to meet the requirements of the consumers in any area of supply.(2) Where the Government might, under sub-section (1), revoke a license, it may, instead of revoking the license, impose on the licensee a penalty, not exceeding ten thousand taka, and permit the license to remain in force subject to such further terms or conditions as it thinks fit to impose, and any further terms or conditions so imposed shall be binding upon, and be observed by, the licensee, and shall be of like force and effect as if they were contained in the license.(3) Where in its opinion the public interest so permits, the Government may, on the application or with the consent of the licensee, and, if the licensee is not a local authority, after consulting the local authority (if any) concerned,(a) revoke a license as to the whole or any part of the area of supply upon such terms and conditions as it thinks fit, or(b) make such alterations or amendments in the terms and conditions of a license, including the provisions specified in section 3, sub-section (2), clause (f), as it thinks fit.