Bitcoin Exchanges seeking clarity over levy of GST MUMBAI: Are Bitcoin exchanges required to pay goods and services tax? If they are, what would the rate be? And, will GST be levied on the revenues or operating margins of these exchanges? India's top seven Bitcoin exchanges, which include Zebpay, Unocoin, CoinSecure and BtcxIndia, plan to approach the Advance Authority of Ruling (AAR) for clear answers to these questions, two people with direct knowledge of the matter told ET. AAR is…