A five-judge Constitution bench of the Supreme Court led by the Chief Justice of India DY Chandrachud, and Justices SK Kaul, Ravindra Bhat, Hima Kohli, and PS Narasimha, is set to hear a clutch of petitions seeking legal recognition for same-sex marriages on Tuesday. Calling marriage an "exclusively heterogenous institution", the Centre today again opposed granting legal sanction to same-sex marriage, and said the question of considering it equal to the existing concept of marriage "seriously affects the interests of every citizen".