Related-person valuation turns on proven mutuality of interest; arm's length sale price cannot be replaced by resale price without it.

Related-person valuation under Central Excise requires proof of mutuality of interest in each other's business, not merely common shareholding, common directors, control, or commercial dealings. Where two public limited companies remain distinct legal entities and the evidence does not show reciprocal business interest or extra-commercial consideration, they are not treated as related persons. In that situation, the seller's arm's length price cannot be discarded and the buyer's resale price cannot be substituted for assessable value. The text also notes that buyer-side commercial influence, bulk purchasing, branding, or expenditure on advertising and marketing does not by itself justify rejection of the transaction value.

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Issues: (i) Whether the appellant and M/s. BPL Ltd. were "related persons" under Section 4(4)(c) of the Central Excise Act, 1944 on the basis of common control, shareholding, and business dealings; (ii) whether the price charged by the appellant could be discarded and the price at which M/s. BPL Ltd. sold the goods adopted for assessable value on the footing of mutuality of interest and extra-commercial consideration.

Issue (i): Whether the appellant and M/s. BPL Ltd. were "related persons" under Section 4(4)(c) of the Central Excise Act, 1944 on the basis of common control, shareholding, and business dealings.

Analysis: The material showed that the appellant and M/s. BPL Ltd. were distinct public limited companies and separate legal entities. The record did not establish that the appellant had any direct or indirect interest in the business of M/s. BPL Ltd., or that the alleged common management and shareholding resulted in legally relevant mutuality of interest. The documents relied upon by Revenue were insufficient to show that the companies ceased to deal at arm's length or that the statutory test of reciprocal business interest was satisfied.

Conclusion: The appellant and M/s. BPL Ltd. were not related persons within the meaning of Section 4(4)(c) of the Central Excise Act, 1944.

Issue (ii): Whether the price charged by the appellant could be discarded and the price at which M/s. BPL Ltd. sold the goods adopted for assessable value on the footing of mutuality of interest and extra-commercial consideration.

Analysis: Once the existence of mutuality of interest was not proved, the sale price could not be rejected merely because M/s. BPL Ltd. was a bulk buyer, a brand owner, or had commercial influence in negotiations. The record also did not show that advertisement, marketing, or other expenses paid by the buyer constituted assessable-value additions sufficient to override the appellant's sale price. The transactions were treated as principal-to-principal sales at arm's length, and the price differential by itself did not justify adoption of the buyer's resale price.

Conclusion: The appellant's sale price could not be rejected and the price at which M/s. BPL Ltd. sold the goods could not be adopted for assessment.

Final Conclusion: The demand and penalties based on related-person valuation were unsustainable, and the appeals succeeded.

Ratio Decidendi: For valuation under related-person principles, Revenue must prove mutuality of interest in the business of each other and not merely common shareholding, common directors, or commercial negotiations; absent such proof, the seller's arm's length price cannot be replaced by the buyer's resale price.

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