Story: Life Partner is the story of friends, who struggle on the marital marathon, but on different tracks. Three friends, three different approaches to life is Life Partner in a nutshell. Karan (Fardeen Khan) and Sanjana (Genelia D’Souza) are madly in love with each other. And for them, marriage seems to be the next step to cement their relationship. But is 'love marriage' the right way? Is ... ...detailed story of Life Partner