AlQa'dah 2, 1433, Sep 18, 2012, SPA -- Saudi ambassador to Iran Mohammad Abbas Al-kalami congratulated Saudi leadership and people on the occasion of the 82nd anniversary of the national day of the Kingdom of Saudi Arabia which falls on next Sunday. In a statement on this occasion, the ambassador highlighted the great unity of the Kingdom of Saudi Arabia. The Embassy of Saudi Arabia in Tehran ended its preparations to celebrate the National Day.