1. You are requested to recheck your GST Provisional Id details in your Service Tax Login. Also check that you haven't withdrawn the service tax registration.
2. You may contact at GST Helpdesk at 0124 4688999 or email them at helpdesk@gst.gov.in
30 March 2017
It means your dvat registration is cancelled, first of all check on dvat site in dvat credential whether your regn. is active or cancelled than proceed further