Form GSTR-6A auto-drafts supplier and invoice details to enable distribution and reconciliation of input tax credit for ISDs. Form GSTR-6A provides an automated reporting format for supplies auto-drafted from GSTR-1 (and GSTR-5) for Input Service Distributors, capturing supplier GSTIN, legal and trade names, invoice number and date, taxable value, rate and segregated tax components (Integrated Tax, Central Tax, State/UT Tax, Cess) to enable distribution of input tax credit. It also includes tables for debit and credit notes with original and revised document details to facilitate reconciliation and adjustment of distributed credits.