Commercial identity of monoblock pumping sets brought them within "centrifugal pumps" for concessional sales tax treatment.

Monoblock pumping sets were treated as "centrifugal pumps" for purposes of the sales tax notification granting concessional treatment, because the pump and electric motor form a single marketable commodity and operate through a common shaft. The Court applied the commercial and functional identity of the goods, and followed the view that centrifugal pumps, whether monoblock or coupled, fall within the notified category. The Tribunal was found to have erred in excluding monoblock pumping sets from that expression. Accordingly, the notification applied to the goods at the concessional rate of tax.

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Issues: Whether monoblock pumping sets were covered by the expression "centrifugal pumps" under Notification No. 1100(17)-V-ST/79 dated 31.03.1979, and consequently taxable at 3 per cent instead of 5 per cent.

Analysis: The relevant notification under section 12 of the Madhya Pradesh General Sales Tax Act, 1958 granted concessional treatment to centrifugal pumps. The Court relied on the commercial character of monoblock pumping sets, noting that a monoblock pump is a single marketable commodity in which the pump and electric motor are inseparable and work through a common shaft. The Court also considered the functional identity of the goods and the earlier view that centrifugal pumps, whether monoblock or coupled, fall within the notified category. On that basis, the Court held that the Tribunal had erred in excluding monoblock pumping sets from the expression "centrifugal pumps".

Conclusion: Monoblock pumping sets are centrifugal pumps for the purpose of the notification and are exigible to tax at 3 per cent, not 5 per cent.

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