Valuation of securities as stock-in-trade: mandatorily at lower of actual cost and net realizable value.
Securities held as stock-in-trade must be valued at the lower of actual cost initially recognized and net realizable value at year-end. Unlisted or unquoted securities held as stock-in-trade are to be measured at actual cost as initially recognized, under the income computation and disclosure standards framework.

Valuation of securities: aggregate category wise cost compared with net realisable value, lower amount taken as carrying value.
For subsequent measurement under ICDS VIII, securities held as stock in trade are aggregated category wise; for each category the aggregate cost and aggregate net realisable value are compared, and the lower of the two is taken as the carrying value.

Derivatives accounting: ICDS VI governs typical derivatives, ICDS I applies residually, capital-asset derivatives are excluded.
ICDS VI supplies guidance for derivative contracts such as forward contracts; derivatives outside ICDS VI's scope fall under ICDS I. Derivative instruments that qualify as capital assets are excluded from ICDS and thus not governed by those standards.