Live in relationship, women's rights

I were in live in relationship with a guy from Punjab, we were living together,now he has shifted to Canada for higher studies, started avoiding my call.i had relation on pretext of marriage,we were living together from 4 year on and off but 4 year we were in continueous relation..now he don't want to marry me, his parents are against me. And blaming me that I did black magic on their son.. similar accusations they put on his previous g.f as well. Now I also don't want to marry him,but the amount and effort I had put in relationship was to much,m in depression n under medication.,its more hurtful for me because,he is only guy with whom I had made physical relation.because of this thing I m feeling guilty..that I trusted such undeserving person. But I want to take revange, so that he n his family cant do same thing again with any other girl...but I also don't want my parents to know about these things.i m leaving alone at my work place city. What will be legal options I have,so that he n his family at least go to jail for few days to months. As his father also bought topic of dowry in between the lines during conversation.