Yes, after you finish filing your income tax return, you need to verify that all details are true and accurate. This is done by submitting ITR-V. You can do so via your Aadhaar and OTP on the e-filing website or through your bank’s netbanking platform. You can also mail a physical copy of the verification to the IT department. The verification has to be completed within 120 days or else it renders your ITR invalid.