Mr work is worship, cash disallowance is not applicable for B/S items. only for the items that are routed through P&L the disallowance is applicable. Depreciation being a loss the disallowance as per Rule 6DD is N/A.
"Mode of purchase does not change the Rule of Depreciation under Income Tax Act", So it is treated as usual u/s 6 D of Income Tax Act and apply the Applicable rate (Specified in Income tax Act) to the Concerned Block of Asset.