The price of stock with Rsi(2) value 90 and above are considered overbought.likewise The price of stock with Rsi(2) value 10 and below are considered overoversold .If you want to shortsell the stock for Intraday, first see for how many days the stock is contionously up.This you can find in the excel sheet header coloumn +days.Take for example Glenmark.The closing price is 629.05 and the stock is up for +2 days and the Rsi(2) value for the closing price is 89.39.For the corresponding no 89.39 in the row you can find the todays closing price.This stock is very risky to short in intraday because when the entire market is down , this particular stock showed strength and it is up only for two days. Chances are this stock will go up in next trading day. For finding out the corresponding Rsi(2) during trading hours just compare the price against the correponding Rsi value.Generally any Stock will not fall below the 50% of the rsi(2) value the next day.Take for example Gail.The stock closing price is 398.55 The stock is down for 3 days and the corresponding Rsi(2) value is 15.18.So 50% of 15.18 is 7.59 , so go to row containg figure 7 and youu will find the corresponding price for 7 and 8 rsi(2) value ie 390.60 and 388.20. So around this value you can consider going long.For any stock going beyond 50% of today's Rsi value is considered weak Dont trade that stock.