A video of the former minister slapping a woman during campaigning was widely circulated on social media on Friday.
The incident occurred in a village in the Armur Assembly segment when the Congress candidate was campaigning along with some other leaders.
Jeevan Reddy allegedly slapped the woman, a labourer under rural employment guarantee scheme, when she told him that she will vote for 'flower' symbol in the May 13 election.
She lamented that she had voted for the Congress in the recent Assembly elections, but she is not getting pension. The Congress candidate was accompanied by P. Vinay Kumar Reddy, who lost the Assembly election from Armur.
Armur is one of the seven Assembly segments under Nizamabad Lok Sabha seat.
The Congress has fielded Jeevan Reddy against sitting MP D. Arvind of BJP.