The 2G spectrum scam involved Indian government officials undercharging mobile companies for licenses. This resulted in an estimated loss of 1.76 trillion rupees (US$38 billion) to the Indian exchequer. Key politicians like A. Raja and Manmohan Singh were involved in the scandal. Telecom corporations like Reliance Communications benefited from the underpriced licenses. The scandal broke in 2010 and led to investigations, arrests, and fallout in Indian stock markets.