Madras High Court (Commercial Division), N. Anand Venkatesh J. — Arb O.P(Com.Div.) No.266 of 2024, decided 18-12-2025 — Insurer's (SBI General Insurance) challenge under Section 34(2)(a)(iii), Arbitration and Conciliation Act 1996, to award dated 02.02.2024 in A.F.No.125 of 2019 favouring the insured (Saravana Global Energy Ltd) on an Industrial All Risk policy claim for flood damage of 09.11.2015 at Cuddalore. HELD, petition allowed and award set aside: (i) loss under the policy is assessable either wholly on reinstatement value (RIV) basis or, the reinstatement terms (including completion within 12 months) failing, wholly on market value (MV) basis; assessment part RIV and part MV is neither a possible nor a plausible view, disregards the express policy terms, violates Section 28(2) and is perverse and patently illegal under Section 34(2A); (ii) 'items' in the policy means an asset class, not individual machines or parts; the contra proferentem reading (following Haris Marine Products, AIR 2022 SC 3036, relied on by the Arbitrator) would lead to compensation for 'every nut and bolt' and is patently illegal; (iii) the Rs.3.25 crores reinstatement award is unsustainable — the burden of proof lay on the claimant to produce invoices/purchase orders/bank statements, and the Surveyor's testimony/report alone cannot fix the amount; (iv) the underinsurance finding, resting solely on the Surveyor's evasive cross-examination answers without independent reasons on the rival RBI indexation values (184.9 vs 127.6), is perverse and patently illegal; (v) fixing kiln-furniture depreciation at 50% 'to strike a balance' between 29% and 75% without reasons is unauthorised ex aequo et bono decision-making contravening Section 28(2) (Ssangyong Engineering v. NHAI, (2019) 15 SCC 131 and BCCI v. Deccan Chronicle, 2021 SCC OnLine Bom 834, relied on); (vi) interest at 18% from the date of loss till award, both as to period and rate, is contrary to Regulations 9(5) and 9(6) of the IRDAI (Protection of Policyholders' Interests) Regulations, 2002 binding the parties, and is patently illegal (Eternity Footwear, 2018 SCC OnLine Del 9504 and New India Assurance v. Khanna Paper Mills, 2022 SCC OnLine Del 4269, relied on). Petitioner permitted to withdraw its Rs.4,00,00,000/- interim deposit with accrued interest; no costs.