Assuming you have bought the shares and the share price has fallen 6 rupees, it depends on whether it is a falling market or a trading range bound market.
If it is a falling market, there is a high possibility that the share price might fall much further. If you discover early enough that the market is falling, you can reverse your position and take a counter position to make up for your loss or come into profit.
If you discover that it is a range bound market, then you can buy some more shares at a lower price and find a suitable average price to exit all your shares.
If you do not understand what the market is doing, then it is safe to say you must close your positions at the earliest.