Hi! all experienced M2u sifus, need you help clarifying some questions.

I just got my accounts opened last week. And now I have two accounts, cash a/c (CSxxxx) and contra a/c (MJyyyy)

Q:
1. Does contra account come with margin facility by default? If yes, how much? If no, how to go about getting the margin facility?
2. (a) How do I pledge my FDs as a collateral for cash a/c and contra a/c?
(b) What is the facility available in each a/c upon pledging such FDs?

Thank you.