pls tell me about camlin fin

Well, I suppose you bought the stock for trading purposes and not for fundamental reasons. If so, you ought to have a strict stop loss. If the stock loss is triggered, you must exit the stock. On the other hand, if you have bought the stock on fundamental factors, then you must check whether the assumptions on the basis of which you bought the stock have changed. If so, you must re-evaluate whether to hold the stock or not. If the fundamental factors have not changed, then every dip in the stock price is an opportunity to add more and average your cost downwards.