In his memorandum to the electoral officer last evening, Neekhra demanded that the Election Commission should register a case against Solanki, while alleging that the BJP leader had recently talked about preventing Congress workers from casting their votes.
The Assembly elections in the state are slated around year end.
Neekhra also alleged that Congress voters were being identified and their names were being deleted from the voters' lists.
Earlier, leader of Opposition in MP Assembly, Ajay Singh had also criticised Solanki and state minister Kailash Vijaywargia.