A Sydney primary school teacher has told Salim Mehajer's electoral fraud trial her signature was forged on documents nominating her for election to Auburn Council as part of a group headed by the colourful property developer.

Fatima Kandil, 30, told the Downing Centre Local Court on Friday she did not submit documents to the Australian Electoral Commission changing her address from Lidcombe to Auburn before the 2012 council election.

But she admitted she did agree to run for election as part of a group of candidates led by Mr Mehajer, even though she had no prior interest in or involvement in local government politics.

"A group of friends suggested it, one of whom was Salim," Ms Kandil said.