Financial Fraud. Any thing called Anonymous FIR/Tipoff?

Hi, During the period of Demonetization a Lady approached me through a known acquiantance. She wanted to convert her cash into white. Even though knowing that this was wrong, I agreed to help her within a specified limit. I came to know that she works as a prostitute. I suggested her that she should get out of this business as it is illegal and she might get in trouble. To which she told me she has a loan to pay that is why she is working. Later when there was a serious cash crunch going on she asked for my help(monetary) with her loan just for the ongoing period of cash-crunch as she had no 'work' available. (Demonetization side effect for prostitution industry.) Which she promised to pay me back. I reluctantly agreed to help her a bit but sooner her demand for 'help' increased with reasons like - My father has to go through an operation'. After which I put a stop and told her I cannot help her anymore. I gave her a good three-four months without any contact with her and once I tried to reach out asking politely for my money back: She bluntly refused to even acknowledge that I gave her any money, rather she threatened me to lodge a police complaint against me if I try to call her again. She was building totally false stories. I was completely shocked at her outrageous behaviour.(I have the call recordings with me.) Certain other details emerged during this period and certain others I had to dig out: - She is a Nepali citizen and travels in almost all the major cities while on 'work'. - She uses a Fake Govt. ID card (Voter's Id) of which I have a copy. - She currently lives in Delhi. (I have her address) - In Delhi she lives with 4 other Nepali origin girls who are also in same line of Business. - One of whom got arrested recently and is in Jail under ITPA. (also was living in India with fake ID.) - The money that I gave her was routed to a Bank in Kathmandu. (I have the bank acc nos. in Delhi who are involved in money laundering.)In fact this was the reason that alerted me that something is wrong when everytime she would give me a different bank acc. to transfer. What I am looking for: I know that it is very hard to establish any kind of fraud because I myself willfully transferred the money. At times I get exact details of where she is working right now and I try to reach out to police and give them an anonymous tip-off so that they can act on this information. What advice/ legal-assistance I am looking for is - 1. Have I commited any crime if I transfer some money to an account which I do not know of? 2. Is there any way by which I can give a tipoff or anything like anonymous FIR to police so that they actively act on it? It may sound like I am trying to take my revenge but the fact is that NO ONE should be allowed to roam around with fake IDs and commit crimes like these. Moreover it is an organized gang of people living with FAKE IDs, work illegally and collect HUGE sum of money every month from India. Thanks,