New Delhi, Dec 17 (IANS): Appearing before a special CBI court here Saturday, Janata Party president Subramanian Swamy deposed against Union Home Minister P. Chidambaram to prove his alleged complicity in the 2G spectrum scam.

Swamy told Central Bureau of Investigation (CBI) special Judge O.P. Saini: "The prime minister's speech delivered on the floor of parliament in February clearly proves that the pricing of the spectrum was taken on basis of cabinet decisions of 2003, which specifically left the issue to be determined by the finance minister and DoT (Department of Telecom)."

Chidambaram was the finance minister in the first United Progressive Alliance (UPA-I) government when the spectrum saga began.

Swamy has sought to make Chidambaram a party in the spectrum case, saying the decision on spectrum pricing was taken in 2008 jointly by him and then communications minister A. Raja, who is lodged in Tihar Jail since Feb 2.

"Chidambaram and Raja were empowered by the 2003 cabinet decision to determine the spectrum price jointly," said Swamy.

"Chidambaram was aware at least one day before what Raja was planning to do in selling the spectrum," he added.

As Swamy sought some time to bring more documents related to the scam, the court adjourned the matter till Jan 7, 2012.