Filing of VAT returns: mandatory digital signature requirement for Forms DVAT 16 and 17 withdrawn with immediate effect. The Commissioner withdraws prior notifications that mandated filing returns in Form DVAT 16 or Form DVAT 17 with digital signatures, with immediate effect, rescinding the March and July 2016 notifications issued under the Delhi VAT rule-making authority. Form DVAT 17 is the Composition Tax Return form requiring dealer identification, tax period and TIN, sales and composition rate, detailed tax computation including interest, penalty, tax paid and TDS, payment particulars with challan/bank details, and a verification attestation by the authorised signatory.