Stocks are bought and sold by traders placing orders in the exchange through brokers’ web portals. Orders are executed to deals when buyer and seller agree at a particular price. The deals are settled after market closing after 3:30 pm. Settlement problems are handled by the exchange in conjunction with the brokers. Counter settlement is done by exchange from brokers’ deposit accounts. Trading is done in Intraday and Positional, futures and options, long and short position. Stocks bought are store in dematerialised format in the Banks’ DEMAT accounts. The regulatory body is SEBI.