Guzarish is a story of two sisters who are getting married to two brothers. Zara is the younger sister who is getting married to Zain. Zain is the younger brother who loves Zara too.
And this marriage is the only thing they wanted and desired from this life because they are deeply in love with each other. Sara is the elder sister who is getting married to Jaffer. Jaffer is the elder brother who loves his ego more than anything.