Section 68(a) in The Companies (Accounting Standards) Rules, 2006
(a)changes in the liability alter the revaluation surplus or deficit previously recognised on that asset, so that:(i)a decrease in the liability should (subject to (b)) be credited directly to revaluation surplus in the owners' interest, except that it should be recognised in the statement of profit and loss to the extent that it reverses a revaluation deficit on the asset that was previously recognised in the statement of profit and loss;(ii)an increase in the liability should be recognised in the statement of profit and loss, except that it should be debited directly to revaluation surplus in the owners' interest to the extent of any credit balance existing in the revaluation surplus in respect of that asset.
