Eradicating corruption is difficult but it can be plugged. A few years back, we had a scheme called the VDIS launced by Mr PC to bring black money into the market. it was fairly successful.
Where does corruption reside, in places of power, it means where a signature, approval or where a trustee of funds in involved.
Identify such positions across all government agencies. Police,Municipal,Govt institutions & all places where the state or central govt bureaucrats/politicians are involved.
All these positions should come under a special category say X category.
Give all these X - Category guys all aminities like life long pension, a Government house, lifetime medicals etc .
Inturn enforce strict rules like One bank account for self & One for each family member. Declare all assets. Any other bank account in any other name to be seized.
Any discrepance leads to jail
A central nodal agency headed by an honest man like say Mr Kalam or Mr Khairnar with sweeping powers. He reports to nobody but the President of India or the Supreme Court like the Election commissioner. He should be selected by a three member panel from the Business community who know what HONESTY means.
Start with the Central Government, set an example. Take one state at a time for e.g Gujarat where the Chief Minister is considered to be an HONEST GUY.
This can be a long process but we may actually earn or rather save about 50 to 70000 crores annually.