Indigo Airlines — Money stolen from checked in baggage

My cash amount of 25000 rupees was stolen from checked in baggage. I was traveling from Patna to goa and when I arrived at goa hotel which was 50km from airport I saw the zip of pocket in which I kept my money open and cash missing. I event didn't had enough money to go back to airport to report this since cab drivers there only accepts cash, I immediately called indigo airlines to report this and I called my father to report this at Patna airport too. Indigo said they'll look at this issue and connect with me back. Two days later they said that they found no evidence of money stolen and it was my fault to not report it immediately at goa airport. I tried writing mails and call them but got same response that they can't do anything about it.