President Pratibha Patil, Vice President Hamid Ansari, Prime Minister Dr Manmohan Singh paid floral tribute to the former prime minister.
Congress president Sonia Gandhi along with her son and MP Rahul Gandhi reached "Vir Bhumi" to pay their tributes at his memorial.
A series of functions scheduled cross the country to mark the day.
Gandhi's birth anniversary is observed as "Sadbhavana Diwas" . The theme of "Sadbhavana Diwas" is to promote national integration and communal harmony among people of all religions and languages.
Rajiv Gandhi was assassinated on May 21, 1991 at Sriperumbudur in Tamil Nadu while on a poll campaign.
New Delhi: The nation on Friday paid homage to former prime minister Rajiv Gandhi on his 66th birth anniversary.
First Published: Friday, August 20, 2010, 11:52