My friend has HDFC Sec a/c just recently. Please note that unless you are a big investor / khiladi, the brokerage may strike you as high.
They charge a minimum of Rs. 25 brokerage per scrip.
Even for intraday, you buy stock A @ Rs. 100, ten shares. You pay Rs. 25 brokerage.
You sell the same ten shares of stock A, you pay Rs. 25 brokerage.
So 25 + 25 = 50. Just on brokerage! Other charges apply. I lost interest after seeing this and will stay with my old broker.