If you do an event in India and if you want to use your own payment gateway, do reach out to us and we will discuss about the integration and the integration cost.
If you happen to do an event outside India, you have the option to integrate PayPal or Stripe account with your account. Please go to Profile & Settings and select payment & Banks and do the integration. Make sure that before you integrate your PayPal or Stripe account, you need to set the Currency.
