S. 263 : Commissioner-Revision of orders prejudicial to revenue- Depreciation-Block of assets–Scientific research–Capital expenditure–User of asset is not relevant–Once expenditure is incurred–Deduction is allowable.
Method of accounting–Valuation–Consistency method–Revision is held to be not justified–MAT credit–Revision is held to be valid. [S. 2(11), S.35(1)(iv), 35(2), 50, 145A]