Olx — About to get fraud!

I posted an add in olx, the person called me and he said he wants to buy my product and he will send someone else tomorrow to collect that product from my address but he will make advance payment through phone pay via army ultra cash machine. He said first he will send 1 rupee, after my confirmation he will send the rest amount, I got little doubt on him, and I said him to send money to my direct account and not in phonepay. He rejected and said he is a army personnel and he can make payments only through army ultra cash machine... As my profession is software engineer, I got so many doubts and I cross checked him with my questions then I got confirmed that he is a fraudster. And my cousin also said these kind of cybercrime is a new trend.
Luckily I have saved my money please take care of your hard earned money.
The fraudster details:
Name: Nitin Kumar
Phone: [protected]