futures

i am new to the world of futures ,
and i have some doubts so please anyone on this forum
could explain in detail the process of futures with an example of a stock say NTPC.

also what are the magins for different stocks and indexes and does the margin of a stock change eday.



any help would be appreciated.

if you are earning some money in cash then dont go for futures . . .

in last fall it wiped out so many traders

thanks for advise y2j826

just wanted to know how future trading is done ,


please anyone

help me

thanks in advance