I am in love with girl who is tamil brahmin her parents are complitely against our wish... and very much stubborn they are not even ready to talk to me...
Kindly suggest the way we can make her parents convinced.

Before convincing her parents, what is the view point of your parents?

How long has it been since her parents were informed that you wanted to marry? Have they had time to calm down and think about their daughter's wishes?

Do they have someone in mind for her to marry?

What are their objections besides the caste difference? Can these objections be overcome?

Is there anyone they respect who would plead your case to them?

Have you and she sat down and discussed your expectations for what marriage would entail?