Madhubani (Bihar), Feb 16 (PTI) Police have unearthed three illegal cement factories which sell the product under different popular brand names at Ranti in Madhubani, police said today. Acting on a tip off, a police team led by Additional Superintendent of Police Babu Ram located the factories and seized 3000 sacks of cement last night. Guddu Kumar, accountant of the factories owned by one Sanjay Singh was arrested. The factories had no licenses. The cement was sold in the retail market in sacks with tags of premier brands like ACC, Lafarge, LT and Birla Gold, police said. PTI COR KDK PR