Ok thank you sir.Obviously from bc casino, listen sir when we select a payment channel they usually named like UPI F, UPI R, UPI 1. When you select one of them you are directed to a page where the merchants UPI id appears there you get option of paytm, google pay , phone pay . I selected Paytm and since I had created 35000 order from bc deposit page , I had to pay 35000 Ind. After the payment gets successful the page automatically redirects you to bc casino page. You can yourself see the date and time of the order creation and payment
I can confirm that this is how UPI deposits works in crypto casinos, and it's almost impossible to change the merchant from that position because it will directly take us to the PIN and amount and everything will be entered in default so we only can go further from that page in Gpay and other UPI apps.
But it is not possible to confirm OP paid to that UPI ID or not, he can simply pay to someone else at the same time and can claim this ID is shown to me at that page so it's kind of confusing state. But BC should have all the merchant who process INR payments and if they say the name is not in their list then that's likely to be the case.