TaxTMI 
TaxTMI 
Dear sir,
we had applied for registration in service tax. service tax number allotted by department is ADGT4523ESD003 but such pan uses one time as per my knowledge so why department issued SD003. also i want to know its deferent mean from SD001
Registration issue
10 Sep 2014 
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Service tax registration suffix indicates number of taxable service units and whether registration is centralized, affecting unit identification.
The suffix element of a service tax registration number denotes the number of distinct units recognized for service tax purposes; SD001 corresponds to one unit and SD003 denotes three independent units, reflecting that the registrant is not registered as a Centralized Service Provider. The suffix therefore determines unit identification for compliance, and taxpayers should verify registration details with the service tax department. (AI Summary)
The suffix element of a service tax registration number denotes the number of distinct units recognized for service tax purposes; SD001 corresponds to one unit and SD003 denotes three independent units, reflecting that the registrant is not registered as a Centralized Service Provider. The suffix therefore determines unit identification for compliance, and taxpayers should verify registration details with the service tax department. (AI Summary)