Doing Food Hotel Service cad sale milk under same GSTIN

Doing Hotel Business only Veg Meals and Coffee and Tea and Paying GST @ 5% without taking ITC now i want to know i can do milk sales [ Fresh milk and pasteurised milk ] Nil in this Same GSTIN  or want to take separate GSTIN [ Ding Business from April 2023 Purchase Using Only PAN and till date amount of sale not shown in GSTIN now i can add commodity and can show the purchase and sale in March 25 GSTR -3B in the same Hotel GST