There are a lot of hidden charges. While opening the DMAT account they say the brokerage is zero for purchasing and while selling the charge Rs. 1/- per share. I purchased 200 shares of a company for Rs. 3754/- and sold all the 200 units for Rs. 4055/- thinking that I am not making any loss. But after deducting all their charges and taxes only Rs. 3352/- credited to my account.