Stock trading is a Business to make money . trader can take long, short, long unwinding, short covering , positional, intraday trading.
Share price is decided by the buy and seller. Its also possible to buy and sell stocks from BSE and NSE, but intraday is not possible, even if we quote highest price than the market price, the exchange will execute the order at the market price immediately .
Trade plan is based on the analysis of company performance, share price, analysis of the Balance sheet, foreign investments, growth etc. It is required for long term investment – positional trading