Futures
Index, stock and MCX contracts, settled in the same ledger as the rest of your book.
Contracts on screen stream tick-for-tick over the shared market socket; the board itself re-reads every 5 s for contracts the socket has not delivered. Deposits are shown for one lot at the platform's futures rate — intraday and carried overnight are separate rates. Real exchange margin is SPAN + exposure and typically higher, and it rises near expiry, so treat these as a floor rather than a quote.