How to trade

Collect information from news , incidents and find which sector , or which stock affect that news,

Not collect news from newspaper, it is very late,

search related news from net, tv news, or google 

Go to historical data of nse, find daily volume , if volume is doubled buy or sell with price move ments

https://www.nseindia.com/live_market/dynaContent/live_watch/get_quote/GetQuote.jsp?symbol=TATAMOTORS#

oi http://www.moneycontrol.com/stocks/fno/marketstats/futures/oi_inc_p_inc/index.php

find open interest is up from trading terminal

volume doubled, price, open interest increasing , buy the stock

if price decreasing  sell the stock