Relationship of India with Japan(2016) is probably is highest after independent India !Reason being is Special FRIENDLY relationship between PM of Japan Shinjo Abe and PM Modi.Highlighting point is that PM Modi was in good terms with Shinzo Abe when he was CM of Gujarat and Japan invested heavily in Gujarat.Extent of Relationship is No.1 as compared to other nations !Big example is that Under smart city initiative it's JAPAN who is developing PM Modi's constituency & Holiest Place for Hindus that is Varnaasi or Kaashi. Personally as an Indian what I feel about Japan is following1. Most HARDWORKING people on Earth2. Honest people3. Technically strong4.Even after suffering so many earth quakes Japan never cry VictimHood then re-build themselves and the biggest example is how Japan Build itself after Hiroshima- Nagasaki incident !Overall I feel is that Japan is Most TRUSTED friend of India and Trust me PM Modi is doing Great service to India by engaging with Japan and you guys will thank him in future for this great friendship of two great nations Indian and JAPANI HOPE this will help youIf not then comment me