Maintenance of books accounts in case of online product selling

Nikita Shah (15 Points)

21 April 2020  
If someone is showing income on commission basis ( online product selling )
But amt credited in bank including sale price
and Then payment made to supplier in cash after withdrwal
Then how to do accounting in this case
Should I maintain Books of accounts
Can I file ITR under section 44AD as presumptive income ?
Please suggest