Johannesburg - The Gupta family has threatened to obtain an urgent interdict to halt a planned march by the Democratic Alliance to the family's compound in Saxonwold on Thursday morning.
The DA says it is marching to highlight the scourge of state capture.
Thursday's march comes a day after the unveiling of a monument to President Jacob Zuma at Groot Marico, where the opposition party had also staged a protest.
The National Prosecuting Authority (NPA) has previously confirmed in Parliament that it is investigating several contracts involving the Guptas, including its coal contracts with Eskom, its botched tie-up with Denel and VR Laser, and the Free State dairy farm that funded a lavish family wedding at Sun City.
In addition, the NPA is investigating allegations made by former deputy finance minister Mcebisi Jonas of being offered a bribe of R600 million to assume the position of his then boss Nhlanhla Nene.
The Gupta family enjoys close personal and business ties with President Zuma's son Duduzane, who has openly defended their relationship.