Are two spouses who belong to a binary gender essential for marriage, Chief Justice DY Chandrachud asked on Thursday, as the Supreme Court heard arguments on legalising same-sex marriages. "We see these [same-sex] relationships not just as physical relations but something more of a stable, emotional relationship," Justice Chandrachud said on the third day of the hearing by a five-judge bench that is being live-streamed on the court website and YouTube.