83 athletes in 13 sports Archery, Athletics, Badminton, Boxing, Field Hockey Men's tournament, Judo, Rowing, Shooting, Swimming, Table Tennis, Tennis, Weightlifting, & Wrestling
India's Rank : 55th in Olympic 2012
530
205
204
240
104 athletes are competing in the Olympics games for Brazil 2012
Wikipedia lists Italy as having 284 athletes competing in the 2012 Summer Olympic Games
16
Nauru
50
302 events
Yes, Russia are competing in the 2012 Summer Olympics in London.