If a person adopts the presumptive taxation scheme of section 44AD, then is he required to maintain books of account as per section 44AA?
Section 4​4AA​ deals with provisions relating to maintenance of books of account by a person engaged in business/profession. Thus, a person engaged in business/profession has to maintain books of account of his business/profession according to the provisions of section 44AA.

In case of a person engaged in a business and opting for the presumptive taxation scheme of section 44AD, the provisions of section 44AA  relating to maintenance of books of account will not apply. In other words, if a person adopts the provisions of section 44AD and declares income @ 8%/6% of the turnover, then he is not required to maintain the books of account as provided under section 44AA in respect of business covered under the presumptive taxation scheme of section 44AD​.​