It is required to either e-verify the return or send it by making the signature physically to CPC, Income Tax Department, Bengaluru within 30 days of filing the return. Failing to do so will result in invalidation of return, which means the return will be considered as having never been filed.If the return is verified after 30 days, the date of e-verification will be considered as the date of filing, and if such date falls after the due date, thenthe late filing fees of Rs.5000/Rs.1000 will be levied.The tax regime shall be switched to the default regime, and the return will be processed. (For FY 2023-24, if the new tax regime was opted out, then the return will be processed under the new tax regime (default regime) by disallowing the ineligible exemptions and deductions.