Former telecom minister A Raja, DMK leader Kanimozhi and all other accused were today acquitted in the politically-sensitive 2G spectrum allocation scam cases by a special court in Delhi which held that the prosecution "miserably failed" to prove the charges. The judge OP Saini said the CBI could not prove that Mr Raja, along with officials from companies that won the licenses for telecom services, had conspired to receive kickbacks from the sale of phone permits, causing a loss of Rs. 1.76 lakh crore to the government.