Queries for HDFC 3 in 1 account

I am a student and a new investor.

I wish to open a HDFC 3 in 1 account for which I have following queries, which I hope some of experienced members here will be kind enough to clear up.....

1. What is latest minimum balance in HDFC Bank account? Are there any sort of bank charges including Debit Card or other charges?

2. What are brokerage rates of HDFC?
I have heard (although I dont know if this is true!) that they have a minimum brokerage policy whereby if brokerage in a particular transaction does not exceed Rs.100, they charge min brokerage of Rs.100.....

3. What is latest deposit amount and Yearly maintenance charges for HDFC....

4. Are there other hidden charges?

Also is there any broker that supports online trading linking with Bank of Baroda Net Banking account?

I am asking all this here because you never get straightforward reply for hidden charges except from persons who already have an account.... So any help will be appreciated....!

Thanks in advance!!

i have similar queries, will any experience member answer them?