Deemed registration verification SOP mandates physical checks, financial scrutiny, risk-based notice, and cancellation proceedings where warranted. Compulsory post-registration verification is directed for taxpayers who obtained deemed registration where Aadhaar authentication was not opted for or had failed. The proper officer must physically verify the business premises and conduct preliminary financial scrutiny, including examination of ownership or tenancy, employee details, identity particulars, bank KYC, returns, bank account activity, capital employed, and sources of funds. In specified risk cases, FORM REG-17 may be issued, and if cancellation appears warranted, proceedings under the applicable cancellation procedure are to be initiated. The verification exercise is to be completed within a time-bound period with weekly reporting and supervisory oversight.