I've thought about this a lot for India as well. To be realistic we would need unprecedented levels of transparency to get the amount of data needed to get usable results. With the amount of nepotism around even constructing a simple network of party heads of each state and related companies and contracts awarded for public work would be valuable.

At this stage we really should think of it more in terms of documenting corruption rather than stopping corruption. When (and if) the system is ready to change the data would be extremely useful to see why things are happening the way they are and work out if solutions would just move the corruption-bottleneck rather than eliminate it.