The Indian government is considering classifying cryptocurrencies under the goods and services tax (GST) law to ensure the transactions get taxed. At present only services provided by crypto exchanges come under the law. GST officers told PTI that cryptocurrencies are similar to casinos, gambling, betting and all of these have a 28 per cent GST rate. Even gold transactions attract 3 per cent GST, they said. Only after the classification is done will the GST rate on cryptocurrencies be decided.