Azerbaijani President Ilham Aliyev sent a letter of congratulation to Portugal's President Anibal Cavaco Silva, AzerTaj sate news agency reported.
"I sincerely congratulate You and your people on your National holiday- Day of Portugal," the letter says.
The Azerbaijani leader expressed hope that the relations between the two countries will develop in an atmosphere of friendship and cooperation for prosperity of the two nations.
President Aliyev wished Cavaco Silva and his people best regards, prosperity and welfare.