I am a user of HDFC securities . And I wouldn't recommend anyone to open a demat account. Their brokerage is very high. Today I bought a share and they charges me 25% of total value of shares plus gst. This 25% brokerage was not informed in order preview. After market closing when I got the contract note I was shocked to see Rs1000 brokerage on share values of Rs4200. Now I am planning to transfer my shares and close this demat account.