False allegations of Dowry on breaking engagement.

Hi, I live abroad and got engaged to a girl couple years ago. It was purely a arrange engagement as we only met once and got engaged and then I left India. Eventually we started talking to each other and realized there were compatibility issues, she was very introvert and wouldn't have survived outside of India. Plus, they also lied about her Job. So I broke the engagement by sending a written message to her and her brother with an apology. I am willing to pay whatever they have incurred ao far, like ceremony expenses and gifts. But, they have been putting false allegations of dowry now and threatening to sue me. Now, I can't even come to India to meet some one else or my family, because they will register a complaint and I will have to deal with it and if am stuck in India for more than 2-3 weeks I will have problem at my current job. This is a pure blackmail and extortion. Not sure how can I save my self some time and get it over with. We have involved few of our common relatives and communities head as well. But, they have denied their request as well and are asking 3-5 lac which doesn't make any sense.