Section 84 in The Companies (Accounting Standards) Rules, 2006
84. In accordance with AS 5, an enterprise discloses the nature and effect of a change in an accounting estimate that has an effect in the current period or is expected to have an effect in subsequent periods. For property, plant and equipment, such disclosure may arise from changes in estimates with respect to:
(a)residual values;(b)the estimated costs of dismantling, removing or restoring items of property, plant and equipment;(c)useful lives; and(d)depreciation methods.
