regarding revised return for ITR-1 salary

I have file return on salary for the AY-2019-20 and return successful and printout ITR-V form for send to IT dept...but there is some error at the time of filing return such as gross salary not match with return gross salary.is revised return possible or not if possible please clarify about revised return process though I have file original return and ITR-V not sent to IT dept or not e verify return due to wrong filing return and also at the time of filing revised return original return e verification necessary or not