Which of the following statements about Parliamentary Committees is TRUE?

The correct option is: Standing Committees are reconstituted from time to time and are permanent.

Explanation:
Parliamentary Committees are classified broadly into two main categories: Standing Committees and Ad Hoc Committees.

1. Standing Committees: These are permanent and continuous committees that are constituted from time to time in pursuance of the provisions of an Act of Parliament or Rules of Procedure and Conduct of Business. Though their members are elected or nominated periodically (usually for a term of one year) and reconstituted regularly, the committees themselves exist continuously as permanent bodies of the Parliament.

2. Ad Hoc Committees: These are temporary in nature and are appointed for a specific purpose (such as inquiring into a specific matter or report on a particular Bill). They cease to exist once they complete the task assigned to them and submit their report.

Let us analyze the given statements:
- Ad Hoc Committees are permanent in nature: False (They are temporary).
- Standing Committees are reconstituted from time to time and are permanent: True (This accurately describes Standing Committees).
- There are no temporary Parliamentary Committees: False (Ad Hoc Committees are temporary).
- All Parliamentary Committees are permanent: False (Ad Hoc Committees are temporary bodies).

Therefore, the only true statement is that Standing Committees are reconstituted from time to time and are permanent.