The yen was torn between speculation about higher Asian currencies ahead of a Group of Seven meeting next month and jitters about possible intervention by Japanese authorities.
India, which is a member of the bigger Group of 20 nations, said it has accepted an invitation to attend talks with G7 finance ministers and central bankers in London.
Other G7 officials have said China and Russia -- also G20 members -- would attend the talks, reflecting an increasingly important role of key fast-growing emerging economies.
In the run-up to the meeting, European policymakers are urging Asia to share the burden of dollar weakness and let their currencies rise. The yuan is pegged to the dollar and the Indian rupee is not fully convertible.
The yen tends to be traded as a surrogate for other Asian currencies, but Japanese monetary policymakers have repeatedly warned this week against rapid yen appreciation and said it would intervene in the market, even on its own, if necessary.