Nov 7, 2008: HC reserves verdict on pleas filed by gay rights activists seeking decriminalisation of homosexual acts.

Jul 2, 2009: HC allows plea of gay rights activists and legalises sexual activity among consenting adults of same sex.

Jul 9: Delhi astrologer challenges HC verdict in SC. Later, several others including BJP leader Singhal (since dead), religious organisations, rights activists and yoga guru Ramdev's disciple also oppose the judgement.

Feb 15, 2012: SC begins final day-to-day hearing in the case.

Mar 27, 2012: SC reserves verdict. Dec 11, 2013: SC sets aside the 2009 Delhi HC order which had decriminalised gay sex.

Dec 20: Centre files review petition in SC seeking re-examination of its verdict.

Dec 24: Gay rights activists file review petition in SC seeking re-examination of its verdict.

Jan 28, 2014: SC refuses to review its verdict on criminalising gay sex, dismisses pleas of Centre, activists.

Apr 3: SC agrees to consider for an open court hearing on curative petitions filed by gay rights activists against its verdict criminalising homosexuality.

Feb 2, 2016: SC refers curative pleas on homosexuality to five-judge bench.