Income Tax Return (ITR) Submission Deadlines, Delays and Implications

It is time for Income tax Returns submission (ITR submission), and there are many queries that we come across every year, not only because the laws related to tax filing keep changing, but also because we keep landing ourselves into a new trouble every time e.g. what to do if you did not file ITRs in the previous years. 

So, i thought it might be helpful to put forward a few important scenarios and the answers to such queries.