The chronology of events leading to the Supreme Court's decision on Friday rejecting the plea of Janata Party chief Subramanian Swamy seeking an investigation into Finance Minister P. Chidambaram’s alleged role in the 2G spectrum scam case:

Dec 15, 2010: Mr. Swamy moves special CBI court seeking prosecution of the then Telecom Minister A. Raja in 2G scam and his (Swamy’s) appointment as public prosecutor.

Jan 7, 2011: Court holds Mr. Swamy’s complaint against A Raja “maintainable“.

Feb 2: Raja along with his former private secretary R K Chandolia and the then telecom secretary Siddharth Behura were arrested by the CBI for their alleged role in the 2G case.

Mar 25: Mr. Swamy’s complaint transferred to Special court set up at the instance of the Supreme Court to try all cases related to 2G scam.

Aug 23: Mr. Swamy moves SC for CBI probe against Finance Minister P Chidambaram in the 2G case.

Aug 26: Mr. Swamy tells Special CBI court that he will file a plea before it to make Mr. Chidambaram a co-accused.

Sept 8: SC directs Mr. Swamy to submit his correspondence with the CBI in connection with his plea to investigate Mr. Chidambaram’s alleged role in the 2G scam.

Sept 15: Mr. Swamy tells court he will bring new facts that Mr. Chidambaram and Mr. Raja had a role in deciding 2G spectrum prices and entry fee.

Sept 22: CBI defends Mr. Chidambaram in SC, blames the Department of Telecom (DoT).

Oct 10: SC reserves order on Mr. Swamy’s plea for a probe into the alleged role of Mr. Chidambaram in the 2G scam.

Jan 7, 2012: Mr. Swamy places on record various certified copies of the documents in support of his private complaint against Mr. Chidambaram.

Jan 21: Special court reserves order for February 4.

Feb 2: SC refuses to ask CBI to probe role of Mr. Chidambaram in 2G case and leaves it to the Special court to decide the matter.

Feb 4: Special court dismisses Mr. Swamy’s plea to make Mr. Chidambaram a co-accused.

Feb 23: Mr. Swamy moves SC against trial court order on Mr. Chidambaram. NGO, Centre for Public Interest Litigation also files application seeking probe against Mr. Chidambaram.

Mar 1: Plea against Mr. Chidambaram and Law Minister Salman Khurshid for their alleged role in the 2G spectrum scam is listed for hearing in the SC.

Apr 4: SC begins hearing plea against Mr. Chidambaram.

Apr 24: SC reserves order on the maintainability of the plea for probe against Mr. Chidambaram in the 2G spectrum case.

Aug 24: SC dismisses plea for probe against Mr. Chidambaram in the 2G case, says no prima facie material to show that Chidambaram got pecuniary benefits.

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