India, June 16 -- Cryptocurrencies added to gains early on Tuesday but on a distinctly cautious note that reflected both anxieties ahead of the Federal Open Markets Committee on Wednesday as well as profit booking. Lack of clarity on the terms of the U.S.-Iran agreement also mellowed the relief rally.

Bitcoin traded between $67,248.14 and $65,621.73 in the past 24 hours. Overall crypto market capitalization increased a little less than 2 percent during the same period.

The prices movement in the cryptocurrency market comes amidst a decline in sovereign bond yields, the dollar's retreat, a further plunge in crude oil prices as well as mild gains in the Wall Street Futures. Crypto markets also reacted to the widely expected interest rate hi...