(For those, not aware, Tokamak is a device used to confine very high temperature plasma to produce energy using controlled nuclear fusion. As of now these are not in commercial use but at research stage. But we are getting close, like we have been saying for last 60 years !!!) When SINP Tokamak installation was going on, Japanese Engineers from Toshiba came to install the machine as it was manufactured by Toshiba in Japan.