The CP said those arrested were aged between 20 and 40 years.
The result shows that Mr Ehindero led with 16,439 votes in Akoko North East.
The Labour Party in Ondo says it is optimistic that its candidate, Ibrahim Abass, will win the by-election.
Shefiudeen Oyeyemi, head of the department (Voters Education and Publicity) for INEC in Ondo, disclosed this on Thursday in Akure.
“The people’s votes must count and any attempt to rig the election will be resisted.’’
Ruling on the case, Rose Soji, the tribunal’s chairman, promised that all applications would be accommodated and decided upon according to the law.
