You can easily download it from the official website of the department or directly from here. Candidates in huge amounts appear for the exam after the pandemic situation. The vacancy for this post is 224 after this the candidates need to opt for the interview from home or at the centre it will be cleared later. Check the article below for the West Bengal Workshop Instructor Solved PDF Solutions 2020.
ANSWER KEY > "WBPSC Workshop Instructor Answer Key 2020"