Once you get the visa, you can travel to Italy and obtain a residence permit, which permits you to stay in the country for a long-term. As the Italy investor visa committee reaches a decision, you are eligible to apply for a visa within six months at the nearest Italian Embassy or Consulate.
You require the Nulla Osta as well as hard clones of all the documents that you have submitted. Once the Italian Embassy grants you the visa, you can use it two times to enter the country.