Finance Minister Arun Jaitley launched the Operation Clean Money website today.
"We want to change habit from non-tax compliant to tax compliant," said Sushil Chandra, chairman of Central Board of Direct Taxes (CBDT).
The Income Tax department will put up reports of raids on the website.
The website will give details on the process by which tax defaulters have been identified.
Sources say "high risk individual or groups" will face action like search, seizure and direct inquiry.
Those designated "medium risk" will be informed by SMS or email to take corrective measures, and low risk or "very low risk" defaulters will be watched.
The identity of individuals and groups under scanner will not be revealed, say sources.