Property, Plant and Equipment rules: ICDS, Indian GAAP and Ind AS differ on capitalisation, spares, depreciation and componentisation. ICDS V mandates tax-aligned capitalisation of tangible fixed asset costs, disallowing an option to expense immaterial items and requiring capitalisation of certain pre-production and idle-period expenditures. Major spare parts usable only with a specific asset and used irregularly are capitalised under ICDS, while Indian GAAP and Ind AS treat such spares as expense, PPE or inventory depending on definition and use. Replacement costs are capitalised only when they increase future benefits beyond prior performance. Depreciation under ICDS follows statutory rules and differs from Indian GAAP and Ind AS on componentisation, useful lives, and treatment of changes in depreciation method.