Gst on lease rent

When you are registered at Delhi, premises is at Delhi, and registration of document is at Delhi...........  POS should be Delhi only.......

sir,

if lease rent is under dispute, no any income booking and payment receiving by the company. what should be the GST treatment.

if disputed lease rent received in august 2017 for last five years, no income booked and taxes paid by the company earlier. how should be this income taxed. whether gst or service tax levied?????