Tresemme is one of the best shampoos around. I started using it on my sisters recommendation and have been using it since an year now. It has the finesse that makes your hair sot, silky and shiny in actual. For around a month now, though I am using the Purple one which is meant for hair fall defence, but this was also very good.
Now even the prices of shampoos from Tresemme have also reduced, so its a boon. You can buy it online to save a few more bucks. For a better impact, I would suggest to buy the conditioner as well.