Petrol and diesel sales are currently outside the scope of GST and are considered non-taxable supplies. When filing your GST returns, you should declare the total taxable value of petrol and diesel under 'Non-GST Outward Supplies' in Table 3.1(e) of Form GSTR-3B. Additionally, report these sales in Table 8 of GSTR-1.
FORM GSTR-3B ki Table 3.1 i.e. "Tax on Outward and Reverse Charge Inward Supplies" ki column (e) "Non-GST Outward Supplies" me apko Total Taxable Value of Petrol and Diesel post karna parega.
Petrol and Diesel is temporarily out of the purview of GST. Hence it is a Non-Taxable Supply.