This distinction has gained prominence in the last couple of years with the emergence of discount brokers who trade huge volumes at very low cost. These discount brokers do not offer any research or any add-on advisory services. They just offer plain execution of trades which is why they are able to offer very low brokerage. Similarly, these discount brokers do not offer offline facility for placing trades except a call-and-trade facility, which is chargeable in most cases. The full-service model will charge a higher brokerage but comes with a host of services. For example, there is research, there are short term calls, there is an advisory desk and there are advisors to help you if you get stuck in positions. These are some of the premium services that you will get when you opt for a full-service trading account as against a plain vanilla discount broking account. While the trading account enables you to trade on the BSE and the NSE, the commodity trading account enables you to trade on the NCDEX and the MCX. Remember that for commodity trading you must open a separate commodity trading account and a separate commodity demat account too.