The electronic verification of the income tax return filed thorugh EVC (electronic verification code), aadhaar based OTP, thorugh net banking or authorised bank ATM's etc is known as e verify of ITR. The copy of acknowledgement (ITR V) is not required to be sent by post to Bengaluru in this case. To read more about e verification click here. https://filemytaxonline.come-verify-income-tax-return-guide