Thanks for posting your queries.
Direct plans are profitable only when you are able to select the right product which suits your risk profile and time horizon. Past returns of the fund is not the only criteria which you should look at while selecting a fund. Take for example you have some surplus corpus which you need it after one year and simply by looking at the return if you select a equity or hybrid fund then you are making a mistake while investing in this fund.
In Between these one year if the markets are not performing well then you might end up loosing money. Thus selecting a product a product is critical decision which you should make before deciding on whether you should go with direct or regular plans of that scheme.