Central South University has three campuses. You didn't say which campus to get off at.

There is a fare to Changsha South Bus Station opposite Zhuzhou Railway Station, around 20 yuan.

Once every half an hour.

When you get to the South Bus Station, take the 17 bus.

If you want to go to the North Campus of Central South University, get off at Taohualing Station, and you will arrive soon.

If you want to go to the South Campus of Central South University, get off at Wangjiawan Station, and it will take you ten minutes.

If you want to go to the new campus of Central South University, get off at taoyuan village Station, and it will take you ten minutes.

I hope this helps.

Please adopt O(∩_∩)O~