ANC veteran Albertina Sisulu celebrated her 90th birthday with pomp and glamour on Tuesday, with renowned guests such as former president Nelson Mandela.

More 300 people paid homage to the widow of the late Walter Sisulu for her role in the Walter Sisulu Paediatric Cardiac Centre of Africa (WSPCCA).

Sisulu, wearing a formal maroon suit, was brought into the room in a wheelchair as bagpipers belted out a happy birthday tune for her.

Radio presenter Sam Cowan, who hosted the event, said the WSPCCA played a great role in saving children who need heart surgery.

"Sisulu and the WSPCCA have done a wonderful job by helping these children in South Africa and Africa," said Cowan.

The CEO of the WSPCCA, Linda Bleazare, said: "There are a number of children who need cardiac operations in Africa."

The cardiac operations project was run by WSPCCA to help children with heart problems in South Africa and Africa. Bleazare said on average the WSPCCA spent about R140 000 per operation.

Standard Bank deputy chairperson Saki Macozoma lauded Sisulu for her role in the struggle against apartheid, describing her as a "self-made woman".

"We appreciate her role and we will continue funding such a good cause," said Macozoma.

A distinguished guest

Mandela surprised guests by appearing midway through the celebrations.

Flanked by journalists and cameramen, Mandela, wearing a gold print shirt, walked on stage leaning on his cane, assisted by his wife Graca Machel.

Other guests included government officials, celebrities and Sisulu's daughter, Housing Minister Lindiwe Sisulu, along with the rest of the Sisulu family.

The WSPCCA children were invited on stage to sing along with a choir, while Sisulu was presented with a cake.

Mandela smilingly took up position in an easy chair on stage and held hands with his old friend. He left about 15 minutes later.