F&O data for day trading

[Neostar]

What F&O data that we can use during the market hours to pick the stock for day trading?
How can we use them to predict the entry, SL, and target ?
Are these F&O data freely available and how/where to access them ?

[portfolioplus911]

What F&O data that we can use during the market hours to pick the stock for day trading?

INCREASE / DECREASE in Open Interest and PRICE for identifying LONG / SHORT Built-up, Short Covering, Long Unwinding.

How can we use them to predict the entry, SL, and target ?

Strike with MAX OI on calls supposedly acts as resistance.

Strike wih MAX OI on puts supposedly acts as support.

Are these F&O data freely available and how/where to access them ?

http://www.moneycontrol.com/stocks/fno/marketstats/futures/oi_inc_p_inc/homebody.php?opttopic=allfut&optinst=allfut&sel_mth=all&sort_order=0