Tahirul Qadri, Chairman of Pakistan Awami Tehreek, who once worked as prayer leader in a mosque operated by Sharif's family in Lahore is critical of Sharif and his brother Shehbaz, Chief Minister of Punjab.
He accused that 300 Indians were working in Ramazan sugar mill which is owned by Sharif's family.
He went on to say that rules were relaxed to give visa to these Indians who are also exempted from police reporting.
"We have more than 1,100 workers and they do not include even a single foreigner," he said.