Weak trade data, foreign fund outflows and rising crude oil prices weighed on the domestic currency.
Rupee is trading at 68.53 against dollar, driven by positive opening in domestic equities and easing crude oil prices.
RBI said identification of banknote denomination is key to successful completion of cash transactions by visually impaired persons.
Investors will also monitor trade-related developments, as well movement in the rupee and crude oil prices, they added.
Rupee is trading at 68.54 against dollar in early trade on Friday ahead of the release of key macro-economic data.
However, firming oil prices capped the gains, traders said.
A weak trend at the domestic equity markets and global trade tensions kept sentiment subdued, traders said.
Rupee is trading at 68.67 against dollar amid unabated foreign fund outflows and rising crude oil prices.
Strengthening crude oil prices and a stronger greenback in global markets, however, kept the rupee rise in check.
Rupee is trading at 68.84 against the US currency, due to strong dollar demand from banks and importers.