"Annual Report 2007-2008"(PDF). Department of Telecommunications. Retrieved 2013-07-17. This article incorporates text from this source, which is in the public domain.
"Annual Report 2012-13"(PDF). Department of Telecommunications (DoT). Retrieved 2013-07-14. This article incorporates text from this source, which is in the public domain.
"TERM Cells". Department of Telecommunications. 2008-08-05. Retrieved 2013-07-17.
"Annual Report 2008-2009"(PDF). Department of Telecommunications. Retrieved 2013-07-17. This article incorporates text from this source, which is in the public domain.
"Annual Report 2006-2007"(PDF). Department of Telecommunications. Retrieved 2013-07-17. This article incorporates text from this source, which is in the public domain.
"Annual Report 2009-10"(PDF). Department of Telecommunications. Retrieved 2013-07-17. This article incorporates text from this source, which is in the public domain.
"Annual Report 2011-12"(PDF). Department of Telecommunications (DoT). Retrieved 2013-07-14. This article incorporates text from this source, which is in the public domain.