Professional service vs sale of goods: incidental transfer of materials in X-ray work was not a taxable sale.

A radiologist charging a consolidated fee for X-ray examination and technical advice was treated as providing a professional service, not effecting a taxable sale of goods. The decisive test was the true character of the transaction: where the primary object is work and labour, an incidental transfer or use of materials does not become a sale unless a distinct and severable contract of sale exists. The X-ray plate was merely incidental to the service, and its passing did not convert the arrangement into a commercial sale. On that basis, the radiologist was not a dealer under the Orissa Sales Tax Act and the service turnover was not subject to sales tax as a sale of goods.

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Issues: Whether the assessee, a radiologist charging a consolidated fee for X-ray examination and technical advice, was a dealer under the Orissa Sales Tax Act, and whether the transaction involved a taxable sale of the X-ray plates or was essentially a contract of work and labour.

Analysis: The decisive enquiry was the true nature of the transaction. The Court applied the principle that in mixed transactions the court must determine whether the arrangement is an indivisible contract of work or service, or whether it contains a distinct and severable sale of goods. The primary object of the patient's engagement of the radiologist was technical examination and expert advice, not the acquisition of the X-ray plate as a commercial chattel. The X-ray plate was used only as an incident of the professional service, and the passing of property in it did not, by itself, convert the arrangement into a sale. On that footing, the transaction was not comparable to a photographer's commercial sale of photographs, but was a professional service in which supply of material was merely incidental.

Conclusion: The assessee was not a dealer under the Orissa Sales Tax Act, and the turnover from the radiological service was not exigible to sales tax as a sale of goods.

Ratio Decidendi: Where the primary object of a transaction is professional service or work and labour, the incidental use or transfer of materials employed in performing that service does not amount to a taxable sale unless a distinct and separable contract of sale is established.

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