The 2G spectrum scam involved the Indian government underpricing radio spectrum licenses for second-generation cellular networks, resulting in a major loss of revenue. In 2008, the government issued licenses at 2001 prices to several companies despite recommendations to auction licenses. It is estimated the scam caused losses of 1.76 lakh crore rupees. Key figures like former telecom minister A. Raja were arrested. The scandal highlighted the need for reforms to prevent influence of private companies and protect civil servants.