Differential Percentage of Tax in new GSTR 1

Differential Percentage of Tax Means :
For Eg. As per Notification 37/2017 CT R
vehicle. “Leasing of vehicles purchased and leased prior to July 1, 2017, would attract GST at a rate equal to 65 percent of the applicable GST rate (including Compensation Cess),” the finance ministry said in a statement.

And As per supply cover under section 7 IGST Act it's the rate prescribed by Notification is to be charged on taxable value

When the POS is based on GSTN of the receiver of goods and or services where vendor is of another State it is IGST that is applicable. Then why separately call for this "Y / N" this question "supply covered under sec.7 of IGST Act"?

Even  in ANX-1 template also requires the same for each LINE items. Actually if an outward supply involves more than one HSN or more than one rate of tax covered in single invoice then for same invoice for each line item the same question needs to be answered.

This I think is a redundant question?

CA SIVARAMAN VISWANATHAN