Is this possible nifty future continues trade in 50 point (8750 +25 up and -25 down) range bound with major volatility. if possible then how to trade in this conditions (Intraday trading) 
Yes, this is possible. Please check this post on trading the range - http://zerodha.com/varsity/chapter/dow-theory-part-2/
im asking Qustion for nifty fut. only sir
15 trading days buyers and sellers are not confident about the market direction, then intrady trader ka to every time SL hit hoga