How to updated TDS TAX ROUNDING SETUP? Post GST ? Is there any other place to update other then th

How to updated  TDS TAX ROUNDING SETUP  Post GST ? Is there any other place to update other then first Party Registration Form?

we have an existing setup of :

Rounding Basis : Taxable amount :

Rounded to : Nearest Decimal

Rounding Factor : 2

Rounding Basis : Tax amount:

Rounded to : Nearest Decimal

Rounding Factor : 2

we want to update the nearest rounding with out any decimals , Nearest rupee

Also what is the significance of Rounding Basis : Taxable amount  and Rounding Basis : Tax amount: