by watching the sensex. If you want to know about stock price or want to have a look at the stock price chart, you can have access to the same in a matter of seconds, i.e. at a news portal. If today sensex is below 18000 tomorrow it may be above the said figure or even may further go down. So, when you look at the stock price, consider the sensex figures and market trends for past several days/months.
