How can a person's services be secured if they have special qualifications but are appointed to hold a civil post under this constitution according to the text?
The text does not directly provide a mechanism for securing the services of a person with special qualifications who is appointed to hold a civil post under the constitution. However, it implies that such a person's services can be secured by providing compensation if their post is abolished or they are required to vacate the post for reasons unrelated to misconduct on their part. This would require a contract between the appointee and the President or Governor (depending on whether the civil post is under the Union or a State).