GSTIN State Prefix Registry details
State Code 11
Official Indian GST state prefix code configuration for the state of **Sikkim**.
GSTIN State Mapping Info
State NameSikkim
GSTIN Prefix ID11
Geographical ZoneEast India
GSTINs registered in Sikkim must always begin with the numerical prefix "11".
Tax Rules Applicable
Intrastate Sales:CGST + SGST (Local)
Interstate Sales:IGST (Interstate)
POS VALIDATION REGIME
Place of Supply (POS) Compliance Rules for Sikkim
When issuing tax invoices, if your billing destination is **Sikkim**, the Place of Supply (POS) state code must match prefix **11**. Any mismatch between the customer's billing address and the GSTIN prefix will flag errors during GSTR-1 compiling. Use the GST Neural auto-healing engine to detect and fix these mismatches instantly.
Automated Filing & State Mapping
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