Factors affecting the trading analysis

to do trading the basic idea a person is to have technical analysis of the market and go with market rather forecasting the market. it is also necessary when to buy the shares and when to sell. to trade in day or positional which helps better returns and less risk comparatively.
to do all these one person must do the analysis with a trade plan and must also know how the monetary aspects affect the company when to buy and sell. how trading can be done between NSE and BSE exchange of shares between the stock exchanges. pricing strategy and who decides the price and what are the other factors affecting the trade.