A permanent visa for points tested skilled workers who are nominated by a state or territory government agency. You are not required to be currently, or previously, employed in NSW in your occupation to be eligible for NSW nomination. NSW uses a selection-based invitation process to ensure that NSW nominees are aligned to the skills needs of the state’s economy. You cannot directly apply. NSW nomination for the Skilled Nominated visa (subclass 190) is highly competitive due to the high demand, and the limited number of places available.  
https://www.nsw.gov.au/topics/visas-and-migration/skilled-visas/subclass-190