Hello Rajan,

The four levels of meaning are as follows:

1. Literal - Literal meaning is the meaning of the entire story and in this level, a reader gets a normal information over the enitre story.

2. Evaluative - Evaluative meaning is one which a reader can analyse the quality of the story through the meaning of its messages.

3. Interpretation - It is one which the reader picks out the inner meaning.

4. Inferential - It gives quick responses to the readers while reading.

Hope it helps.

Good Luck!