Explanation:

- Section 32: Deals with cases in which statement of relevant facts by a person who cannot be called as a witness is relevant. It does not cover maps, charts, and plans specifically.

- Section 16: Relates to the existence of certain facts, which may be relevant when there is a question whether a particular act was done. Again, not specifically about maps, charts, and plans.

- Section 36: This section specifically covers the relevancy of statements in maps, charts, and plans. It states that such documents, when made by authority of the government, are relevant facts.

- Correct Answer: Section 36

- Section 37: Provides details on the relevancy of statements about any fact of a public nature, which doesn't necessarily cover maps, charts, and plans.