Assistant Press Secretary in Japan's Foreign Ministry Natsuko Sakata also said Tokyo was expecting that the proposed '2+2' talks between foreign and defence ministers of India and Japan will take place as early as possible in 2019.
Replying to a question during a media briefing, Kono said the Ahmedabad-Mumbai bullet train project did not come up for discussion during the talks between the two foreign ministers.
"We are in close cooperation with the Indian side. There are many issues in high speed railway that we are promoting together...We are going step by step," she added.
On the '2+2' talks, the official said, "We are hoping that this meeting can take place as early as possible this year...At the same time we know that you have elections, so we have to wait for the political situation."
Sakata added that the time and place of the talks is yet to be decided.
"Our defence and security cooperation is catching up with that of the speed and the depth of the economic cooperation," Sakata said.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)