The government will auction 13 mineral blocks, including Bunder diamond mine in Madhya Pradesh, next month. The Bunder diamond mine in Chhatarpur district of Madhya Pradesh has reserves of around 34.20 million carats of diamond, according to the mines ministry. Two gold blocks, Chakariya mine at Singrauli and Imaliya gold block at Katni in Madhya Pradesh, are also among the 13 mines to be up for auction, it said. The government also plans to auction mines of limestone, base metal, bauxite and graphite, it said.