Yes, Exactly the spelling is wrong, the correct one is the broker. A broker is basically a person who acts as a mediator between Stock Exchange and the trader. So If we want to invest the money in a stock market which can be based on the Nifty call, we will have to ask the broker to invest it according to your own preference.Over that investment, he charges his commision which is around .33% of your transaction in case of positional holdings and for intraday it is 0.033% of buying and 0.033% of selling or vice-versa.