Tower Hamlets mayor Lutfur Rahman "reached out to everybody" and did not hand out grants unfairly, an aide told the High Court today.
Four voters have taken legal action against Mr Rahman - who they accuse of electoral fraud - at an Election Court trial in London.
They want Election Commissioner Richard Mawrey - who is sitting as a judge at the trial - to declare the result of the May 2014 mayoral election, which saw the Tower Hamlets First leader elected for a second term, void and order a re-run.
Mr Rahman denies wrongdoing.
The group of four has suggested that Tower Hamlets Council grants unfairly went to areas in the "heartland" of Mr Rahman and his supporters.
But Mr Choudhury - Mr Rahman's election agent and a THF member of Tower Hamlets Council - disagreed.
"I strongly disagree with that," Mr Choudhury told Mr Mawrey. "There was a fair process. The grants underwent a process by which they were assessed."
Mr Choudhury said of Mr Rahman: "His focus was to reach out to everybody that lives in the borough."
The four voters have mounted a challenge under the provisions the Representation Of The People Act.
Lawyers for the group have made a series of allegations, including "personation" in postal voting and at polling stations, and ballot paper tampering.
Mr Rahman says there is "little, if any" evidence of wrongdoing against him.
His lawyers have described the group of four's claims as invention, exaggeration and "in some cases downright deliberately false allegations".
The hearing continues.
