Although you mention Indian culture, it's not actually clear which country you're living in.
If you're living in some other countries, the authorities can take steps to protect you.
You don't say how old you are.
You don't say what religion you/your family are.
Maybe you're sikh or hindu, in which case I have very little knowledge and am afraid I don't know enough about those religions.
If you're muslim, then it's possible for you to pursuade your family that forced marriages are actually unIslamic, and that marriages within the Islamic faith must have the consent of both parties.
You could always try pointing out that while your parents may think it's somehow 'shameful' of you to be single and/or to refuse marriage offers, how much more 'shameful' culturally speaking, would it be, when you get divorced in a couple of years down the line, and your respective families start arguing about who is to blame, the groom/bride meaning the husband/wife, blaming the couple concerned, when it fact they should be looking in the mirror... and by then, it's often too late to restrict the harm to one generation, because there may be children involved...
I would also point out that sexual intercourse in such circumstances may be considered rape.