I'm not much into food. I'm kinda the "I eat because I have to." My disclaimer is that I'm not an expert but here are a few interesting stories that might be relevant to this story.
I come from a place where there is a huge influence of the Japanese and grew up in folklores punctuated with Japanese stories. I got to know a tad more, when one of my school-friend took a keen interest in digging up British and Japanese soldiers remains from the World War, built a museum, and is regularly invited as a diplomat by both the Japanese and the British.
I grew up visiting many Japanese monuments, including the last stand of the INA's holding place in India where Subhas Chandra Bose worked with the Japanese.
For the food, from the story, I'm of the believe that the curry is more Bengal-ish than further mainland India. The food from my place are a major blend of our olden recipes spiced up with the Bengali recipe, with an additional dose of East Asia.
Also, most Indian Restaurants in India, if not owned, are pretty much run (cooks, etc.) by Nepalese. And most "Chinese" restaurants by Bengalis. Of course, the "Chinese" food in India are, well, very very Indian-ised.
I also grow up memorizing most scenes from "Bridge on the River Kwai" as that bridge, after crossing, goes through my home-stage to advance into India during the war.