Not all currencies appear at fiat casinos. If you want to bet with Indian rupees, but the site only accepts euros, then you’re likely to get charged a conversion fee, either from your bank or the casino in question. Try and get an e-wallet, as they may allow in-house conversion between currencies at no cost. This can help you get around the issue. Alternatively, find a fiat casino that does accept your currency because there are thousands of them out there to choose from.