What is trn?
A Taxpayer Registration Number (TRN) is a unique nine-digit identification number assigned to each individual taxpayer, business enterprise, organization (non-profit, partnership, charity, etc. Once the taxpayer fills details in part A of GST REG-01, a Temporary Reference Number (TRN) is generated. 7 days ago · Step 4 – You will receive the 15-digit Temporary Reference Number (TRN) now. With the help of TRN NO. The first step is to obtain the Temporary Registration Number (TRN). Given a scattering matrix [S.