Sales register requirements for VAT compliance specifying invoice details, buyer identification, turnover categories and supporting forms for transfers. Form DVAT 31 requires dealers to record sales and outward branch transfers by capturing dealer identification, tax period and accounting method, date and invoice/delivery/credit note numbers, buyer name and buyer TIN, and amounts. The form organises turnover and tax into columns distinguishing inter state sales, exports, branch and consignment transfers, local sales, taxable sale price, output tax and central sales tax, and references supporting statutory forms, concluding with dealer/authorised signatory certification.