• Money given as advance for business proposal but not returned

There is a person from Bhopal who have taken ₹25,000 from me in the name of some advance required to give to some guys with good connections to Officers & Agro dept for procuring of Maize from the warehouses. I've not met the guy yet and don't know much details about him except his phone number. He convinced me to give the amount since he was in discussion with me for more than 3 weeks regarding Domestic Trading & exporting of goods, and shown himself as genuine person and claimed to be calling from "The House" (CM house), which I can never believe. But due to the past discussions and calling over phone, One day he gave me a proposal regarding a tender which is coming to open so person who can avail the good stocks was required to provide some money in order to book the stock for us, so he asked that we required to give 50,000 rupees. So I said i don't have 50,000₹ instead if that third person is trustable, so you should give 50% and I'll give 50% i.e. 25,000 you & I both should give. He first said fine, later he asked me to give 30k as he only had 20k, but I told him it I can give max 25k as I didn't have much money.
So he gave me an account number of a person, he said deposit in his account and I waited for him to deposit first, and he sent me the screenshot. And I asked him one more time, that my money should be returned back if the business would not initiate, he said don't worry, it's guarantee to work, and if not we'll get the money back. That's the only mistake I made just for honoring my words, I gave the money. And it has been almost 15 days, still I haven't received the money back and no business was done. Since last 4 days he told he'll give on Monday, i.e. 24th Jan but still not picking up call. Even though he showed me screenshot of online receipt of his share of 25k money transfer but i feel thats a sham now, may be edited. I have all the call recordings I had with him and the people he took on Con-call. I have proof of transferring money to the person and recordings of these guys telling me that they'll return my 25k. But have not returned yet. Kindly help me with some insights, whether I can register an FIR against the person without any agreement involved apart from verbal(call recordings I have) agreement. And how they manipulated me to get 25k. Is there any case? Can I get my money with the help of any law? And if yes, then what will be the procedure and how much time it may take for me to get justice & my money back and to punish the guy?