cancellation of gst and late fee wave off

Shahbaz Sayed (6 Points)

04 May 2018  
I have started a business for which i have applied for gst, but my business could not run and i have closed my business in aug'17. Also I have filled my gst return till sept'17 after that no requirement of gst no.

Now can i cancel my gst no ?
late fee will be wave off or not ?