Why can't Indian compete with other countries in Olympics

Why can't INDIA compete with other countries? It is one of the question that arises after seeing the medal tally of Bejing Olympics 2008. What is the main thing in which India is lagging behind? We have a population of more than 100 crore and only one or two medals in our tally list. Where are we lagging behind. Is it training or lack of motivation or the money assigned for training is used for some other USEFUL purpose.

If the person wins a medal, he becomes the king and the countries picks him to the top of the world and expectations increases from that person in the next coming years (that should be there, but good training for the same should be given to meet the expectations).
The person is given huge amount of money as a reward, if he reaches some level....why can't this money be utilized for training? Giving reward is not a bad thing, but it should be as a motivational factor, given in this respect that the person performs better in the next games.
Hope that INDIA performs much better in next Olympics and the number of medals in Indian bag increases than the total number (what have been achieved till now?).