Read: Fin Min note on Chidambaram's 2G role

An official Finance Ministry document has cast doubts over the role of Home Minister P Chidambaram, who was then finance minister, in the January 2008 decision of former telecom minister A Raja to issue 2G spectrum licences.On March 25, 2011, Dr PGS Rao, Deputy Director in the Finance Ministry, sent an office memorandum to Vini Mahajan, Joint Secretary in the Prime Minister's Office, regarding allocation and pricing of 2G spectrum. Finance Minister Pranab Mukherjee approved the note after personally inspecting the 11-page document.The Finance Ministry note sent many months after the 2G controversy broke and just a month after Raja was jailed in February, has been accessed by RTI activist Vivek Garg.The note indicates involvement of Home Minister P Chidambaram, who was then finance minister, in the 2G spectrum allocation. The note contains details of the role of Chidambaram and the Finance Ministry in the controversial allocation of 2G spectrum.