You can only withdraw your earnings in rupees if the currency is part of the list in the Casino. However, if you can fund your account with rupees, there is a very high probability that you can also withdraw in rupees.   If there is an Indian-based payment platform as part of the options in the Casino, you should be able to withdraw rupees from your account by converting from a foreign currency to INR. So, this depends on the payment platform and the Casino. You can check for the currency options in the payment section. If the Casino allows INR, you can withdraw it from the platform.