They will travel to Havana this weekend, Xinhua news reported on Friday.
Castro passed away on November 25, at the age of 90. The revolutionary leader lead Cuba for almost five decades.
Castro was cremated, and his ashes travelled through Cuba this week and would be buried on Saturday.
Both the Brazilian leaders published heartfelt statements regretting Castro's death hours after the Cuban government confirmed his passing.
They hailed Castro's leadership and legacy. Lula compared losing Castro to the loss of an elder brother.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)