Grouping of accounts in tally 9 erp for a real estates co.

Hierarchy of grouping depends on the Legal Framework

If it is a company, then you ought to follow Schedule VI of Companies Act 1956

You can also get the Financials of any Real Estate Company and have a glance over their presentation

For other than company it can be customised as per your convenience, I suggest in these casses you first have a glance over Respective Income Tax Return and customize accordingly

And for Creating Groups, use ERP Help Mannual, it will explain you in detail with shortcuts