Are there any exceptions mentioned in the text regarding the tenure of office?
Yes, there are exceptions mentioned in the text regarding the tenure of office. The first one is "Except as expressly provided by this Constitution", which suggests that there may be other provisions within the constitution that specify different terms for certain positions or individuals. Additionally, the phrase "Notwithstanding that a person holding a civil post under the Union or a State holds office during the pleasure of the President or, as the case may be, of the Governor 2*** of the State," indicates another exception regarding contracts made for people appointed to hold specific posts.