As per the Provision of SECTION 35(5) of CGST Act 2017, read with Rule 80(3) of the CGST Rules 2017, Every Registered Person whose Aggregate Turnover during a Financial Year exceeds ₹ 2 Crore is required to get their Accounts Audited either by a Chartered Accountant or a Cost Accountant.
Since your Turnover does not exceeds the prescribed limit of ₹ 2 Crores ( i.e. ₹ 1.75 Cr ), you are not required to get your Accounts audited by a CA or CMA under GST Law.
However, as per the Provision of SECTION 44AB of the Income Tax Act 1961, Tax Audit is mandatory when :
a). A person carrying on BUSINESS, if total sales, turnover or gross receipts in business exceeds ₹ 1 Crore in any previous year.
b). A person carrying on PROFESSION, if his gross receipts in profession exceeds ₹ 50 lakhs in any previous year.
Therefore, you are required to get your Accounts audited by a Chartered Accountant under the Income Tax Act 1961, since your turnover exceeds the prescribed limit.