Why single owner having multiple Pvt Ltd in the same state register GSTIN for each company ?

mack (Thinking-to-start-business)   (154 Points)

29 November 2022  

If a single person has multiple Pvt Ltd in the same state (having different company PAN numbers for each Pvt Ltd) can register a different GSTIN.

So my question is :- What is the benefit of registering different GSTIN for the above situation ?

or it completely depends on the owner of the company to either register one single GSTIN and pay tax using that for all company ?