The Democratic Alliance (DA) says it will on Monday lay a complaint with the B-BBEE Commissioner Zodwa Ntuli about "possibly fraudulent BEE certificates" used by Gupta linked businesses to secure supplier contracts with Eskom.

DA MP Dean Macpherson, who shadows the trade and industry minister, said his party will also hand over "supporting evidence".

"The Gupta entities’ actions, combined with Eskom’s and B-BBEE Matric’s willingness to blindly accept these, may constitute criminal behaviour and must be urgently investigated," said Macpherson.

"The B-BBEE Commission is empowered, in terms of the B-BBEE Act 46 of 2013 to investigate complaints received on any matter concerning broad-based black economic empowerment."