GST challan format requires fields for taxpayer, CTIN, jurisdiction, duty heads, interest, penalty, auto-calculation, and amount in words. Prescribes a draft electronic HSNS PMT-01 challan format requiring taxpayer identification (registration number, e mail, mobile, name, address), challan identification (CTIN, CTIN date, CTIN expiry), jurisdiction details (commissionerate, division, range and codes), and a duty payment block listing Duty Heads with accounting codes, accounting code types, amounts for HSNS CESS, INTEREST, PENALTY, an auto-calculated Total Amount, and the total amount in words; separate fields for interest and penalty are required.