Online trading in share market

How can I do online trading in share market. what is the tems which I have to follow :

You just need to open an online trading account and fund it. Buying and selling is then as easy as clicking a few buttons.

As far as terms, you will be prohibited from violating securities laws as well as the policies of your trading firm. You won't be able to trade on margin above the 50% level (in the US), and you generally will be prohibited from writing naked puts unless you've demonstrated you know what you're doing.