Market value of unquoted equity shares set by break-up valuation with adjusted proportions for prolonged nonpayment of dividends. Rule 1D prescribed a break-up valuation method for unquoted equity shares: deduct excluded liabilities from included assets in the balance sheet, divide the net by paid-up equity capital to obtain a per-share break-up value, and apply a prescribed proportion of that break-up value as the market value; the rule adjusted the applied proportion downward where no dividend had been paid for specified consecutive accounting years and listed specific balance-sheet items to be excluded from assets and liabilities for valuation.