Showing presumptive tax @8% when the actual profit is higher

Kartik (Self Employed) (75 Points)

19 November 2016  

Is showing presumptive tax @ 8% allowed or legal when the actual profit is much higher than 8% under section 44AD?

Given a scenario where profit of a small business owner is much more than 8%. He decides to file tax under section 44ad showing just 8% income. Will rest of the income sitting in bank account be penalized as tax evasion? Is declaring higher % profit voluntary or mandatory?