Bullion traders protest: The bullion traders association has, however, denied being involved in the smearing of posters. "The Association has no link with the people who were involved in blackening the posters and throwing eggs at them. Police should take action against those involved in the incident and not against the innocent," Saraf said. Meanwhile, Congress has also threatened to stage protest if cases against the businessmen were not withdrawn. (AP)Mirzapur: Jewellers block the road during a protest against hike in excise duty on gold in Mirzapur on Monday.