Threatening for marriage

Respected Readers, this is Aalam from telangana, 3 yrs before, when I was in college, I have got 1 unknown facebook request from a girl, I have accepted the request, after few days conversation, she proposed me that she started loving me, I have not met her, not even saw her, when I asked for photos she made some reasons that she is pretending like innocent, later on even I started loving her, but after 3 months of conversation I got to know that actually her real mentality her whole family involved that they are trapping me. Then I started ignoring her. Her parents called me started threatening me by saying they will tell to my parents and at that time accepted that I will marry her after 7yrs , let me finish my studies and settled in life in phone conversation, they have recorded everything and forwarded to my whole family, then they started harassing us by saying marry other I will kill u son , because that time our financial conditions are not good our relatives are also convinced us give them in writing that you will marry after 7 years, we did as they said we thought they will change their minds after few years but, unfortunately after they started threatening our family again marry now otherwise I will kill you all, but trying to find some solutions to escape, but they asked help for she team police they are supporting them and they are not even listening, we have call threatening records, their are not even listening those records. They asking to marry her forcibly, I have not even saw her photo, I don't want to marry her .. local police also supporting because women card, my parents suffering alot, I'm in gulf working as an engineer, don't know what do... Please help.