HP Yadav, national president of All Yadavs' Welfare Association, has been served a show cause notice by VS Hooda, returning officer of the MCG elections.
Yadav allegedly "incited" members of a community to vote only for candidates of that community.
"The provocative statement made through an advertisement is damaging. What does he mean when he says 'Do you want to hold the next five years in your grip?' Such advertisements incite communalism," said Hooda.
The advertisement was published in a Hindi newspaper on Friday. It appealed the Yadav community to vote only for Yadav candidates.
In the notice, Hooda charged the advertiser of interfering with free and fair codes of the election. Hooda said the advertisement clearly induced voters to vote for candidates of a particular community in all the 35 wards.
The notice also charged Yadav under sections 125 and 123(3) of Representation of People's Act, 1951, and section 22(3) of Haryana Municipal Corporation Act.
If Yadav doesn't reply to the notice within three days, then action will be taken under section 153 (A) of the Indian Penal Code, the notice states.
Yadav, however, finds the charges frivolous. "The charges were framed without checking any fact. They can be proved only if my appeal led to religious or communal clashes, whereas nothing of this sort has happened," said Yadav.
“No law and order problem happened because of the advertisement. I will reply to the notice, but I still have not got it,” he added. “As a community leader all I can do is ask voters to vote for our people.”