It's the Italian Ministry of the Interior. It oversees prefetture, police forces, the anagrafe national system, asylum and immigration policies, and citizenship procedures.
Once you're in Italy, most of your immigration life happens under this ministry: residence permits, family reunification, citizenship, and anagrafe records.
Official source
Ministero dell'Interno
Thanks, we'll take a look.
If you left an email, we'll reply when there's something to say.