Sakshi,
Hey frankly speaking, it sound little filmy, but instead of wasting three life its better show some guts and tell directly to mom and dad, that you love someone else. Don't pushed them try to convince them, make them realize that if i will marry him(with whom your marriage is fixed) i will be no more happy and myself in this world. And if you are sure that to whom you love is ready to take your responsibility till the end than must marry with your loved one. In nowadays life you have to think practically all the things. But in a head if anythings wents wrong then everyone will consider you yourself responsible for this.
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