As per the last updates India is participating in 13 Sports which is given below in alphabetical order.
Archery
Athletics
Badminton
Boxing
Judo
Rowing
Shooting
Swimming
Tennis
Wrestling
13 sports
Wikipedia list India as having 81 athletes competing in the 2012 summer Olympics
Yes, Liberia is participating in the 2012 Olympics.
over 10,000 athletes will compete in the 302 events
They will be in a large number of events because they have 410 athletes in 23 sports. See related linkk
A grand total of 205 countries are participating in London's 2012 Olympics.
Yes, Greece is participating in the 2012 London Olympics.
Bulgaria is participating in the 2012 London Olympics.
India's 83 athletes or 60 men and 23 women participated in 13 sports and 55 events
Athletes from over 200 different countries will be participating in the 2012 summer Olympics
An estimated 10,500 athletes will be participating in the 2012 Olympics.
2012
Yes.