Yes, you can open bsda account with zerodha. I suggest you to open general type demat account. You can contact directly zerodha by phone or by email. Their services are excellent. I am with them for three years now, no trouble since then.Three years back, I was searching internet like you for a good broker farm, thank God, I choose Zerodha. Someone referred me to open zerodha trading account, I did, now I am very happy with zerodha. Siba prasad Dash