GST registration base expansion through Paytm third-party data drove field verification and eligibility assessment of traders. Enhancement of the GST registration base was pursued through collection and analysis of third-party data from Paytm. The data was divided into Sheet A for business entities with no PAN or GSTIN in the database, and Sheet B for entities with PAN available but no GSTIN. Field teams were directed to conduct on-site verification, assess business status, record the Paytm reference in online formats, and avoid repeat visits where earlier departmental visits had already been made.