A losing candidate is challenging the election of a North West Leicestershire district councillor in the High Court.
Independent candidate Colin Roberts said district council leader Richard Blunt was not eligible to stand as he does not live in the district.
Mr Blunt, who was elected to the Appleby ward in the May local election, said he will fight the case.
He said he owns property and land in the district, and has never been challenged on this point in the past.
"I believe I am qualified to be a councillor in North West Leicestershire and have filled in the form in the same way for the last seven elections - I have always lived in the same house," said Mr Blunt.
Mr Roberts has sent an electoral petition to the High Court and a commissioner will be appointed to hear the case.
Mr Blunt won the election with 620 votes while Mr Roberts finished second with 302.