What is the minimum band requirement for IELTS test UK settlement visa?

For UK settlement visa, the minimum band requirement are as:

Listening: Score of at least 25 out of 40.

Reading: Score of at least 23 out of 40.

Writing: Score of at least 23 out of 40.

Speaking: Score of at least 24 out of 40.

All four categories score should not be below the given mark or else the language test will not be valid for visa purpose.