EVC for filing GST returns – Companies can file GST returns using EVC instead of Digital Signature for period up to 31.05.2021. (28.04.2021) Leave a Comment / Daily Updates / By Team Bizsol EVC for filing GST returns – Companies can file GST returns using EVC instead of Digital Signature for period up to 31.05.2021. This is to obviate the difficulties in getting DSC used considering lockdown in many states.