After reading what Traderji has written just to make things simpler for futures,
they simply provide you with leverege. How?
well you can by Nifty, the smallest contract the newly introduced mini nifty, futures are traded in lots, mininifty has a lot size of 20 which will cost you about 1.2lakhs very roughly now.
So when you buy nifty you dont need to pay 1.2L instead you may a MARGIN, this can change from time to time and currently its 10% so u end up paying 12,000 controlling 1.2L worth of shares
so every 10 points move in your favour is 200 rupee gain. But remember its a double edged sword. PAPER TRADE FOR A MONTH atleast and get some exposure in equity before trying the above
MJ