Hell lot of money was bet on two possible outcomes. one, Sachin's century and second India win/loose.
Take the first case. Sachin was allowed to score by dropping his catches. Initial bets were in the favor of Sachin's hundred. Couple of catches dropped. Sachin was not looking in great touch. Most of the people who bet on his century changed side. Bookie made money. Again, Sachin was allowed to cross 80 by repetitively dropping catches. By the time, people started believing that sachin will score century.... oops...he got out. Bookie made money again. :)
Not many were positive for India, when we chocked to 260. Pakistan got a good starts and betting moved in their favor. I still do not understand howcome Misbah kept doing shashtry (remember the Ind-Aus when we lost by 1 run), when asking runrate was jumping.
I feel something is somewhere fishy. If things are fixed, then I believe that India will win the world cup. India wining world cup makes lot of economic sense. Now-a-days, end of the day everything is economics.