Business Auxiliary Service classification turns on contract substance, not accounting labels, where work supports the principal's core business.

Services performed under the agreements were taxable as Business Auxiliary Service because the contract and transaction structure showed support for the principal's core business activity. The offer letter and agreements covered distribution and logistics management, business promotion support, customer evaluation, purchase order processing, fulfilment, and delivery tracking; they did not establish separate administrative functions or independent consideration for Business Support Service. The percentage-based remuneration linked to the principals' transactions further confirmed that the work was part of the principal business support chain. The nomenclature used in the books of account was not decisive, and the services were therefore treated as taxable for the relevant period.

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Issues: Whether the services rendered under the agreements were classifiable as Business Auxiliary Service and liable to service tax, or whether they were merely administrative functions falling under Business Support Service and outside the taxable net for the relevant period.

Analysis: The agreements and offer letter were the primary material for determining the nature of the service. They described appointment for managing distribution and logistics, support for business promotion, evaluation of prospective customers, processing of purchase orders, fulfillment services, and tracking of delivery schedules. They did not specify the administrative activities asserted by the appellant, nor did they show any separate consideration for such alleged Business Support Service. The consideration was structured as a percentage of the revenue linked to the principals' transactions with their customers, which supported the view that the appellant was rendering support connected with the principal business activity rather than independent administrative assistance. The books of account nomenclature was not treated as decisive.

Conclusion: The services were held to be taxable as Business Auxiliary Service and not as non-taxable Business Support Service for the impugned period.

Ratio Decidendi: The true nature of a taxable service must be ascertained from the contract and the surrounding transaction structure, and the description used in accounts is not conclusive where the agreement shows support rendered to the principal's core business activity.

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