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MUMBAI CENTRAL CGST & CENTRAL EXCISE COMMISSIONERATE
Address : Ground Floor, GST Bhavan, Churchgate, Mumbai-400020
Phone No : 022-22002591
Email Address : commr-gstmcentral@gov.in
CBEC MITRA HELPDESK
Phone No : 1800 1200 232 (24 X 7)
Email Address : cbecmitra.helpdesk@icegate.gov.in
GSTN HelpDesk
Phone No : 0124-4888999
Email Address : helpdesk@gst.gov.in