Tax Deduction at Source certificate confirming TDS deduction and government deposit with specified particulars and challan proof. Certificate requiring the deductor to state that tax was deducted at source under the Delhi VAT framework and deposited to the government treasury, providing deductor and contractor particulars, tax deduction account and registration numbers, and a table of bills with bill amount, TDS rate, tax deducted, deposit date, challan number and bank branch; receipted challans must be attached and the form must be verified and signed by an authorized signatory declaring the information true and correct.