Dowry return

I am vamshi working as Asst professor in private college in hyderabad . i was approached by parents of a girl In jan 2020 . me and her parents met in a coffee shop for the first time in january when we met they didnt tell me that the girl was already divorced...later i met the girl without knowing that she is divorced . the girl had finished her mbbs and doing pg in delhi...without knowing about divorce i said ok for the girl and they offered dowry of 9 lakhs..in between they kept a condition that i shud quit my job and go with her to delhi which i agreed ( i will get a salary of 30,000 per month)..once i was checking e-challans of her scooty i had seen a picture of her roaming with some guy on her scooty back then i asked her about him which made a quarrel betwwn us the after few weeks i came to know that she has 3 to 4 boy friends. later on they had cancelled the marraige just 10 days before my marriage and asked for the dowry return in stead of 9 lakhs i gave them 5 lakhs . my point is that i quit my job as they forced me to do even before resigning job i asked her and her parents which they said i shud resign where i lost my job and 10 months salary till now which is around 3,30,000 as well... even now i couldnot get my job back ... iam jobless now do i need to return all the amount or shud i return the amount after excluding the loss of my salary even i spent most of the amount for marraige arrangements . what are the actions i need to take they are calling me daily for money please help me in this