This restaurant comes recommended by food critics in Japan and serve a mean tempura and often have lunch specials at specific branches. Since the restaurant is famous, you can expect long ques so make sure you are there well before opening hour.
Must eat: Tempura
Approximate Cost for two: Approx. INR 1280
Address: 1-8-2 Muromachi, Nihonbashi, Chuo-ku, Tokyo
Opening hours: 11 am to 2 pm for lunch and 5 pm to 9 pm daily.