Revocation of cancellation of GST

mahendra sahoo (Gst Practicion) (700 Points)

07 October 2020  
Hi All,
One of my friend has not filed gst since Jan 2019 due to no business, now it got cancelled
Now he wants to continues his business on same gst no, shall I apply revocation filing? if filing what is the fees to be charge by dept?
Pls suggest what shall I do