Divisible pipeline contracts and prospective tax exemption leave pipe supply taxable, while writ relief fails for alternate remedy.

Writ relief was declined where an efficacious statutory appellate remedy existed and no exceptional ground justified bypassing it. On the contract characterisation, the Court treated the pipeline arrangements as divisible contracts because the documents and work orders separately identified supply of pipes and execution work; the pipe supply element was therefore taxable as a sale, with no legal error shown in the factual findings. The exemption notification dated 29.03.2001 was held prospective only, so it did not extend to assessment years prior to 2001-02. The Court left the assessment quantum issues to the statutory forum.

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Issues: (i) Whether the writ petition and connected appeals were maintainable in view of the alternative statutory remedy; (ii) whether the supply and laying contracts for pipelines constituted a divisible contract involving taxable sale of pipes or an indivisible works contract; (iii) whether the exemption notification dated 29.03.2001 applied retrospectively to the assessment years in dispute.

Issue (i): Whether the writ petition and connected appeals were maintainable in view of the alternative statutory remedy.

Analysis: The orders under challenge were amenable to the statutory appellate framework under the Rajasthan sales tax regime. The Court declined to reappreciate the contractual findings in writ jurisdiction when an efficacious alternative remedy was available, and no exceptional ground was made out to bypass that remedy.

Conclusion: The challenge on maintainability failed and the writ petition could not be entertained on merits in the presence of alternative remedy.

Issue (ii): Whether the supply and laying contracts for pipelines constituted a divisible contract involving taxable sale of pipes or an indivisible works contract.

Analysis: Applying the law on works contracts under Article 366(29A)(b) of the Constitution of India and the later clarification in Larsen and Toubro, the Court held that a works contract may include both labour and supply elements, but the factual finding in these matters was that the agreements and work orders divided the transaction into supply of pipes and execution work. The supply of pipes was treated as a sale and not merely incidental to the work. Those factual findings were not shown to suffer from legal error warranting interference.

Conclusion: The contracts were rightly treated as divisible, and the value of pipes supplied was taxable as sale in favour of the Revenue.

Issue (iii): Whether the exemption notification dated 29.03.2001 applied retrospectively to the assessment years in dispute.

Analysis: The notification was held to be prospective. The assessments under challenge related to years prior to 2001-02, and the benefit of the notification could not be extended backwards to unsettle completed liability for the earlier assessment years.

Conclusion: The exemption notification did not operate retrospectively and afforded no relief to the assessee for the years in dispute.

Final Conclusion: The Court declined interference with the concurrent findings that the contracts were divisible, the pipe supply element was taxable, and the later exemption notification was only prospective, leaving the assessment-related quantum issues to the statutory forum.

Ratio Decidendi: In a composite transaction, if the contractual documents and factual findings show a divisible arrangement with a distinct supply component amounting to sale, the court will not interfere in writ jurisdiction, and a later exemption notification will not be applied retrospectively absent clear legislative intent.

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