According to Geo.tv, the accused, Bilal Haris, stood up from his seat as Iqbal arrived on stage to address a workers' convention in Aliabad area.
Bilal hurled a shoe at the minister, which reportedly touched the minister.
Meanwhile, the workers at the convention grabbed the man, and handed him over to the police.
After the incident, Iqbal descended from the stage leaving his speech in between.
He, however, reportedly directed the police not to take a legal action against the man. (ANI)