The Co-WIN portal has introduced a feature to submit rectification requests of vaccination date in the Covid-19 vaccination certificates. “We have received requests from people that the exact place and date of vaccination are not correctly recorded in the vaccination certificates. To solve these problems, a new facility has been added on Co-WIN, so that citizens can make these changes after uploading the vaccination certificate as proof,” informed National Health Mission (NHM) Additional Secretary and Mission Director Vikas Sheel.