Indian Prime Minister Manmohan Singh will likely visit Japan by the end of May to discuss a high-speed railway project and a bilateral civilian nuclear cooperation pact, India's foreign minister said Wednesday.

External Affairs Minister Salman Khurshid said in an interview in Tokyo that the introduction of a high-speed rail system in India "is going to be a very iconic, very special project" and he believes Singh and Prime Minister Shinzo Abe will have "a meaningful exchange" on the matter.

However, he said it would be too early for the two countries to reach a deal on the transfer of the shinkansen system to India, as New Delhi needs to more closely examine the project's financial aspects and priorities in railway system investment.