1. I wonder what sort of foolishness one can indulge in through the acts you have just mentioned.
2. it was suicidal to say the least to mention that your mother was a mad woman and due to her only you broke the engagement.
3. However once it is done it cannot be returned back but you can avoid further harassment.
4. Make a complaint with local police that the engagement has been broken and girl's side has been aptly compensated but they are causing further treats which are criminal acts.
4. Lodge a complaint of blackmailing also.
5. Breaking engagement in itself is not a criminal act but they may complain that due to dowry harassment the marriage has been called off and in that even they may not produce the bond paper agreement.
6. So it was another mistake not to keep a copy it it.
7. So lodge complaint on what I have just stated and pray that nothing untowards happens.