Login to the Income Tax Department portal for filing returns online.
Register using your Permanent Account Number (PAN), which will serve as the user ID
Under 'Download', go to e-filing under the relevant assessment year and select the appropriate Income Tax Return (ITR) form.
Open the Return Preparation Software (excel utility) that you have downloaded, follow the instructions and enter all details from your Form 16.
Compute tax payable, pay tax and enter relevant challan details in the tax return. If you do not have a tax liability, you can skip this step.
Confirm the details entered by you and generate an XML file, which is automatically saved on your computer.
Go to the 'Submit Return' section and upload the XML file.
You can digitally sign the file on being prompted. If you do not have a digital signature, you can skip this step.
A message confirming successful e-filing is flashed on your screen. The acknowledgment form - ITR-Verification is generated and the same can be downloaded. It is also emailed to your registered email id.
You can e-verify the return through any one of the below six modes: