PostgreSQL does *not* forbid your country. As you showed further down this thread, you can reach the main website and mirror systems, so that's not where the problem is. But you wanted a statement on it.
This is, however, the second report in just a couple of days of people not being able to reach the windows downloads that are hosted by EnterpriseDB (I assume you are looking for the Windows downloads - if you're actually looking for EnterpriseDB's commercial product, you need to talk to them and not us). This indicates a real problem.
Can someone from EnterpriseDB (hi, Dave!) verify with their provider that they do *not* intentionally or unintentionally prevent people from downloading the software based on their location?
Unfortunately, there are no backup download locations available for the windows installers, but you can always download the source off the postgresql.org mirrors and build your own binaries.