1) you can call of the marriage on account of abuses and threats received from the girl and her family members
2) send an email offering to repay the expenses if any incurred by them in making arrangements for marriage
3) mention that you have been refused leave by your organisation
4)your father file a complaint with local police station wherein you reside and mention that marriage has been called on account of constant threats and abuses received from girl family and of committing suicide .
5) also mention that no dowry demands were made and that yuou had offered to repay expenses incurred for marriage
6) in case fgirl family files any false case of dowry harassment obtain AB from sessions court