The Leader was present in the Imam Khomeini mausoleum to pray and recite Quran to pay homage to the late Imam Khomeini on the eve of the 44th anniversary of the victory of the 1979 Islamic Revolution.
Then, Ayatollah Khamenei paid tribute to the Islamic Revolution and the war-time martyrs buried at Behesht-e Zahra, a cemetery in the south of Tehran.
The comes as Iranians have started Ten-Day Dawn ceremonies across the country, marking the 44th anniversary of the 1979 Islamic Revolution, which put an end to the ruling of the US-backed Pahlavi regime in Iran.
The ceremonies will be held marking the precise time when the late founder of the Islamic Republic, Imam Khomeini, arrived back home from exile on February 1, 1979.
Imam Khomeini spent more than 14 years in exile, mostly in the Iraqi holy city of Najaf. He also spent some time in Turkey and France before his return to Iran.
Millions of people had converged on the capital from across the country on the day of his return. His arrival gave considerable momentum to popular protests against the US-backed Pahlavi regime, which eventually led to its overthrow 10 days later.
The festivities will culminate in nationwide rallies on February 11 this year, the anniversary of the Islamic Revolution.