I subscribe to the views expressed by Mr. Kempanni. He is right when he said that we should book profit periodically and to be invested in quality stocks. Secondly his advice to churn portfolio once in a year is apt. In my first year in the stock market, I saw my profits going up and I didn't book profit. After a few months I saw my profits vanishing and I was on the minus side.I was holding to the stocks as if they were my 'children'. Second year I started booking profits at every rise and reentered the stocks on declines. I could make a decent profit of 25% on my investment.I churn my profitable not for the sake of change, but only if I find value in it.Another secret I learnt was to have a diversified portfolio as on any given day one or the sector moves up and you have a good chance of making profits.