Picture with Samar Das is interesting personally. Samar operated twice on my eyes (strabismus aka squint) in Guildford Surrey in 1979 and !981 when we both worked in Guildford.  Met up with Samar again about six years ago when Tarak Ghosh (good Rotary friend of Huntingdon Rotary Club) invited Samar as a guest speaker to talk about their work on Indian Eye Train (Cataract operations on trains travelling across India).  Just after having had the photo taken today found that Binod Khaitan is an early member of RGHF.