http://www.dailymail.co.uk/news/art...chnically-need-divorce-wanted-sleep-else.html Indian court rules that any couple who have sex are legally married... and would need to divorce if they want to sleep with someone else Any couple who have sex to be considered married, Madras High Court rules This means they would also need to divorce should they break up Either of them could register the 'marriage' if they can prove they had sex The legal registration could be done without the other persons approval