This is the best closing for the home currency since July 17, 2015, when it had closed at 63.47
Continuing its winning streak, the rupee has strengthened by a solid 47 paise in last three sessions
The RBI fixed the reference rate for the dollar at 63.9273 and for the euro at 76.3867
In the previous week, foreign exchange reserves had risen by $488.2 million to $401.385 billion
The Indian currency hovered in the range of 64.02-64.11 during the day
India's reserve position with the IMF also increased by $6.1 million to $2.275 billion
India currently has no regulation for cryptocurrencies
The rupee had gained 30 paise to close at a fresh three-month high of 64.04 on Friday against the dollar
According to the medium-term framework of the government, the limit for both central and state bonds will go up from January.
In the case of Masala bonds, RBI's guidelines were more relaxed compared with ECB guidelines as the rupee-denominated bonds did not carry currency risk
The Reserve Bank of India also announced the government will buy back 200 billion rupees ($3.10 billion) of bonds on Dec 18
The trading volume was huge yesterday as bitcoin price fluctuated in a wide range over the weekend, said Park Nok-sun, a cryptocurrency analyst
The Federal Reserve is widely expected to hike key interest rates for the third time this year
Bitcoin fans appear excited about the prospect of an exchange-listed and regulated product and the ability to bet on its price swings without having to sign up for a digital wallet
Cryptocurrency's rising value is forcing global central banks to form a view on bitcoin
Rupee lost 14 paise to end at 64.52 against US dollar yesterday after RBI decided to keep key policy rates unchanged
The cryptocurrency was last up 2.94 % at $14,030.00 at the Luxembourg-based Bitstamp exchange
Growing worries over higher government borrowings and apprehensions over fiscal slippages also weighed on trade
The move opens the door to added regulation but also more mainstream adoption, as bitcoin futures and other derivatives would make it easier to trade the new asset class
One bitcoin is now valued at $11,875 as in the past one month, riding on a bull rally in the virtual currency