Bride father cancelled wedding after Engagement is done

Hello All THis is Sai, I got engaged this sep 2023 to one of my dad's colleagues cousin daughter through arrange marriage type. Planned to get married in Dec 2023. Here the girl approcahed me saying she found the match and much interested and said my dad and her uncle are colleagues. Before approcahing to me she even convinced her dad but I asked what is the point to do this and convince your dad as this is not love marriage she said as our family is good I said even before, but later I spoke for some time and met few times and moved forward with match, during this time i found she did her bachelors twice due to her dad pressure so I was unclear what was reason doing degree twice ( that is 8years of bachelors in two colleges). She sent her certificates to me of both universities and then I left the topic there and we got engaged on Sep 2023 , but after engagement girl dad made things complicated and always wanted to drop the marriage ( this he told to his cousin who is my dad colleague) as he is not the one who came forward with the match but his daughter bought it. Things are going very fast and recently I want to apply few jobs for the girl and found out she lied to me about her current role and all her basic educationd details so I was confused and why did you lie initially she didn't agree but later accepted and said her dad didn't want to reveal anything before marriage. I asked her to make her dad to speak to my parents on this and settle down to move forward but he didn't speak anything and accepted that he made a mistake asking her daughter to hide but later blamed saying we are rude to his wife and daughter (while we only asked them about what is the point to hide these details and not revealing any information ) and need a confirmation from us saying girl will be safe . We were in shock as we were expecting him to say the reason and purpose to hide the things so after two days he dropped text saying we are not interested to move forward for marriage as he is scared to give girl to us and need trust from us, So coming the point he is even not ready to communicate properly with us and he just spoke to my uncle and called off wedding .We almost wiated for 3 weeks and tried reaching him through mediators but nothing worked, also when we asked about Gold presented to girl on engagementday (around 2lakhs worth of gold) he said they spent 4 lakhs to the enagement and cannot return the gold and not interested to talk on this matter further.But even we spent around 15lakhs like my travel from abroad ,local travel expenses to event , leasing apartment with her name and many other misc expenses including 2lakhs for gold . So what we can do here or best approach to get things back , we are planning to go legally. Any suggestions will be appreciated and thanks alot.