Contradictory part in 44AB and 44AD

Yashi Bansal (Student CA FINAL) (97 Points)

24 June 2018  
The basic provision under Sec 44 AB says You have to get your accounts audited if annual turnover in PY exceeds Rs 1 cr except if you are covered under 44AD such limit extends to Rs. 2 cr. That means if one turnover amounting Rs 1.5 cr and he is paying tax on more than 8% profit, he is not liable to tax audit or 44AB.
Entire picture is pretty much clear upto here but the real confusion is as follows:
Is this written anywhere in the act that if your turnover is upto Rs 1 crores then its mandatory to show profit atleast 8% otherwise U need to get ur accounts tax audited.
When I asked d same from my Principal, he says this only.
But as far as I interpreted from what has been given in 44AB is that if anyone's is covered under 44AD and showing his profit less than even 8% then he will b liable but where it has been written that even if your turnover is less than 1 crore and you are maintaining proper accounts under sec 44AA and also showing profit at less than 8%, whether later is also covered under tax audit?

Respected knowledgeable persons