Muslim men in India will no longer be able to terminate their marriages in a matter of moments, after a split decision by the country's Supreme Court overruled the practice of "triple talaq."Previously, Muslim men (and only men) could irrevocably end their marriages by repeating "talaq," the Arabic word for "divorce," three times. Women's rights advocates in India have fought to end the practice.Now, three of five judges on the Supreme Court have ruled that the practice violates the country's constitutional guarantees of equality.India is majority Hindu but is home to the world's second-largest Muslim population, according to the Pew Research Center. It was an "outlier" among Muslim countries for permitting "triple talaq" until this year, NPR's Julie McCarthy reports. Most countries had already reformed or banned the practice.In India, The Associated Press reports, Muslim instant divorce was protected by "laws that allow Muslim, Christian and Hindu communities to follow religious law in matters like marriage, divorce, inheritance and adoption.""While most Hindu personal laws have been overhauled and codified over the years," the AP notes, "Muslim laws have been left to religious authorities and left largely untouched."The justices ruled that the practice is "not essential to the Muslim faith, and thus failed a key legal test," NPR's Julie McCarthy reports. The court noted that "the Quran had attributed 'sanctity and permanence to matrimony' and encouraged reconciliation between couples. But the court said with "triple talaq,' which amounts to instant divorce, 'this door is closed.' "Justice Rohinton Fali Nariman said it was "manifestly arbitrary" to allow a Muslim man to "whimsically and capriciously" divorce his wife, according to The Hindu newspaper.A husband invoking triple talaq had unilateral power to end a marriage; his wife had no say in the matter. Heated but trivial arguments could result in instant divorce, and in the modern age, the practice could be invoked by telephone, text or email, Al-Jazeera writes: "Muslim women say they have been left destitute by husbands divorcing them through 'triple talaq', including by Skype and WhatsApp."Another Supreme Court justice, Kurian Joseph, noted that the practice goes against the tenets of the Quran. "What is banned in Quran cannot be good in [Sharia law]. What is banned in theology cannot be good in law," he observed, according to The Hindu.In March, NPR's McCarthy reported on the campaign to end the practice: