Stock Market- A Place to buy and sell shares in an organised manner.

Stock Market is a platform for trading shares and other Financial securities.
Regulated by SEBI to protect the interests of share holders.
Public Companies raise money through IPO and these are subsequently traded in the Markets.
SENSEX and NIFTY are parameters or INDEX of the sum total of all the value of shares traded in the markets on a particular day.
Investors and Brokers play an active in the market.