The notice was issued by Haridwar District Magistrate-cum- Returning Officer H C Semwal on the basis of a complaint filed with the commission that the two leaders went in a red beacon light fitted vehicle to interact with party workers at Khelpur in the district in violation of the Model Code of Conduct.
The notices have been served on the two leaders separately, Deputy Returning Officer Pratyush Singh said today.
The seat fell vacant last month after the untimely demise of sitting MLA from the constituency and cabinet minister Surendra Rakesh.