In a meeting, External Affairs Minister Sushma Swaraj and her Japanese counterpart Fumio Kishida also discussed a range of key issues so that Modi's visit to Japan has a "very very substantive outcome".
In the meeting held on the sidelines of the East Asia Summit Foreign Minister's gathering here, the Japanese Foreign Minister conveyed to Swaraj that a special envoy will be sent to New Delhi to discuss pending issues relating to the civil nuclear deal.
Akbaruddin said the Japanese Foreign Minister indicated his country attached great importance to India's views and that he has taken note of Swaraj's views and articulation about it.
"It is understood that they will send an envoy to discuss this matter. As you are aware that there is still sometime between now and Prime Minister's visit there," he said.
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Asked about dates of Modi's visit, he refused to give details.
"They held discussions on a series of issues that could work as outcomes for Prime Minister's visit."
Prime Minister Modi was scheduled to visit Japan in July but the trip was postponed in view of the Budget session of the Parliament.
On Modi's proposed visit, the Japanese Foreign Minister conveyed to Swaraj that his country was looking forward to ensuring that the Prime Minister's visit would be "extremely successful and substantive".
An agreement on civilian nuclear energy would open up the Indian market to Japanese players.
Negotiations for the civil nuclear cooperation agreement had slowed down after Japan was struck by Fukushima nuclear disaster in March, 2011.