However, CET-4 and CET-6 stipulate that "those with a score of 425 or above in CET-4 can apply for CET-6". It is generally believed that the passing line of Band 4 is 425. Some schools also stipulate that the graduation certificate can only be issued after passing 425 points in CET-4. So 590 points is already very good, which is considered excellent.

In fact, CET-4 is not a particularly difficult English test, and the difficulty may be slightly more difficult than NMET. However, as long as you study hard, it is ok to get good grades, and some people get good grades in NMET English and have a good English foundation. I believe it is quite easy for them to pass CET-4.

Baidu Encyclopedia-English Band 4