The tool, called the Financial Fraud Risk Indicator, looks at many data sources.
It classifies numbers as medium, high, or very high risk.
Over 1,600 organizations, including banks and phone companies, are connected.
Training was given to about 1,500 banks and financial groups.
It tells banks if a phone number might be used for fraud.
Banks can then block the payment before money moves.
In just over a year, the tool helped stop more than five thousand crore rupees from being lost.
Everyone can also help by reporting weird messages or calls.
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