44ad turnover

Your turnover should be less than 2 Crores to Opt for section 44 AD .

Turnover doesn't include GST .

GST is liability to be paid . So it doesn't form part of turnover.

You can the sales appearing in Profit & Loss account may be considered as turnover.

As per double entry system

Debtors A/c ( Asset)
To Sales ( P&L)(Income)
To GST payable ( Liability)

Hope you understood

There is no specific definition of Turnover under the Income tax act 1961 under section 2 of the Income tax act however Sales and other Income considered as turnover excluding Taxes . So your sales and other income less than 2 crore you can opt for 44AD

Suppose income is 2 crore above means?? can I show 5%

GST is not inclusion in turnover declared under 44AD.

You can consider the sales appearing in Profit & Loss as turnover.