Meaning of turnover/sales turnover

ca.sanjam @ gmail.com 

A person is required to get his accounts audited u/s 44AB if  turnover of  business exceeds Rs 60 Lakhs, or In case of Profession Gross Receipts  exceed Rs 15 Lakhs.
In case of business what should be the meaning of turnover/sales? Should it be Gross sales or net sales? Should it include VAT, Sales tax or excise duty? The meaning of turnover/sales for the purpose of tax audit is discussed as follows:

In the “Guidance Note on Terms used in Financial Statements” published by ICAI, “the expression “Sales Turnover” has been defined as: “The aggregate amount for which sales are effected or services rendered by an enterprises. The term ‘gross turnover/sales’ and ‘net turnover/sales’ are sometimes used to distinguish the sales aggregate before and after deduction of returns and trade discounts”