GST payment challan format clarifies required deposit fields and accepted payment modes, including bank transaction identifiers for compliance. Form GST PMT-4 prescribes data fields and payment mechanisms for GST deposit, allocating amounts across CGST, IGST and SGST and capturing tax, interest, penalty, fee and total amounts. It requires GSTIN, taxpayer name, CPIN, contact details, challan date and expiry. The form mandates bank and instrument particulars for reconciliation, including remitting bank, beneficiary account details, BRN/UTR/UTR fields, bank acknowledgment numbers, payment date and mode selection, with certain beneficiary fields to be auto-populated to support automated crediting and compliance.