How to Charge GST on real-estate business

As and when advance or installment/s received from the customers. Customer will pay the tax along with the installment.

Well, no GST on any sell contract made after receipt of 'Completion certificate'

DEAR GAURAV DIXIT

EVEN ITS IN FORM OF INSTALLMENT IT WILL NOT INCLUDED IN AGREE GATE TURUNOVER

REFER DEFINITION OF AGGREGATE TURNOVER UNDER SECTION 2(6) OF CGST ACT