Stock Market is a place where buyer and seller trade their financial securities.
It can be done through Stock Exchanges.(NSE,BSE)
SEBI is regulatory of stock exchanges.
Stock market is divided into two markets Primary and secondary.
IPO can done only in Primary Market.After IPO only stock will listed in secondary market.
After buying shares one becomes fractional ownership of the company.he can enjoy the benefits like dividend,bonus,split and voting rights etc.
If some one wants to generate wealth over long time he has to opt for investment.
If someone wants to generate income on daily basis or weekly basis he can go for Trading.