Application of retained assets permits recovery from retained assets and interest on surplus under amended wealth-tax provisions. Section 37C governs application of assets retained under the retention provision: retained money may be applied immediately to discharge specified existing and assessment-linked liabilities; non-monetary assets may be treated as under distraint and sold according to the prescribed sale procedure to satisfy outstanding liabilities. Other recovery modes remain available. Surplus assets or proceeds must be returned to the custodians. The Central Government must pay simple interest at a specified rate on any excess of retained money and sale proceeds over amounts used to meet liabilities, with interest running from six months after the retention order until completion of the relevant assessments.