The Inkatha Freedom Party says South Africans made history on Saturday, with opposition parties uniting in Khayelitsha near Cape Town, to protest against the Protection of State Information Bill.
IFP leader, Mangosuthu Buthelezi says the last time any similar mass mobilisation was witnessed in South Africa, was before the country's liberation, 18 years ago.
He says South Africans are united in saying "no" to the secrecy bill, in saying "no" to corruption and "no" to a Government which has failed the expectations of the liberation movement.
Earlier in the day, Democratic Alliance MP, Wilmot James told the gathering that the public had to "stop the secrecy bill at all costs."
He said there were terrible implications for oversight in government, should the bill be passed into law.
Wilmot said the government was focused on guarding secrets, when it should be empowering the population and ending poverty.