Jacob Zuma testified at a judicial enquiry into the alleged looting of state funds while he was in power, including a web of deals involving government officials, the wealthy Gupta family and state-owned companies.
South African President Cyril Ramaphosa cut cabinet ministers from 36 to 28 to tackle "bloated" government and improve efficiency while appointing more women in cabinet to achieve gender diversity.
Zuma, who was forced to resign by the ruling ANC party last year, has been charged with 16 counts of fraud, racketeering and money laundering relating to the weapons deal dating back to before he took office in 2009.
South African President Cyril Ramaphosa leads ruling African National Congress to victory but a drop in its share of the vote underlines the challenge he faces restoring confidence in his party.
The vote is seen as the toughest test yet for the governing African National Congress (ANC) party, 25 years after it swept to power at the end of white minority rule.
Three opinion polls in recent weeks show the ANC's support ranging between 51 and 61 percent, compared with the 62 percent it won in 2014.
Zuma will record tunes including one that demands the return of land, a song that resonates among many black South Africans demanding land reforms to redress grievances from the painful era of white domination.
Shaun Abraham was appointed by South Africa's former scandal-tainted president Jacob Zuma and faced accusations that he protected him from prosecution for corruption.
The India-based bank has been in the spotlight over its links to the Gupta family, which has been implicated in an influence-peddling scandal surrounding South Africa's former President Jacob Zuma,
Jacob Zuma, who stepped down as president last month, faces 16 charges including fraud, racketeering and money laundering. He denies any wrongdoing.
Former South African president Jacob Zuma goes on trial on Friday for alleged corruption and fraud in a large government arms deal in the late 1990s, charges denied by the 75-year-old who was ousted by his party in February.
South Africa's chief prosecutor Shaun Abrahams announced that former president Jacob Zuma will be prosecuted in connection with a 1990s arms deal.
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