A Democratic Party district councillor was on Tuesday disqualified after the High Court ruled that he was unduly elected.

Hung Chun-hin was representing the Tsui Ping constituency of Kwun Tong District Council, after beating the then incumbent, Cheng Keung-fung, by fewer than 400 votes in polls in 2019.

But Cheng lodged an election petition, arguing that the democrat had made a false statement in election leaflets by accusing Cheng of being a "fake independent" candidate.

Cheng said that throughout his campaign, he had made it clear that he is a member of the pro-government group, Positive Synergy.

High Court judge Anderson Chow agreed that the statement Hung made was indeed false, and was made to prejudice the polls against Cheng.

The judge also ordered Hung to pay the legal costs of the case.