Order matching is essentially on the basis of security descriptor, price/rate, volume, order type and conditions. The value of the order/trade is indicated in "Rs.Lakhs" (Rs.0.1 million) in the trading system. All orders are required to comply with the minimum order size and multiple size as specified by the Exchange. These requirements depend on the type of security, for e.g. all orders for securities issued by the Central Govt. should be for a minimum of Rs.0.01 lakhs or multiples thereof.