Click on the 'Registered user' if you have already registered yourself on the website. Click on the 'e-file' tab and select the 'Prepare and submit ITR online' option.Next, select the relevant form and assessment year for which the return has to be filed. Before starting to fill the ITR form, one should read the 'General Instructions' given at the start of the form to know do's and don'ts.After that you will be asked to fill in required information in different tabs i.e. General information, Income details, Tax details and taxes paid in the ITR form. After your ITR is processed, you will be intimated about the same via mail and sms on your registered mobile number.

Source: Economic Times June 14, 2017 09:00 UTC