Although even I was worried about the increase in margin, wouldn't zerodha benefit with their lower margins and so called same day settlement.
The senior head is the ex head of uti mf looks like he is favouring the mf players with this move.
In any case given the volatility it seems we need to keep some stock in demat to efficiently use our capital and use the margin
all the discount brokerages will bite the dust by this move of sebi... masterstroke by larger broker houses... i myself would think 10 times before buying a derivative contract... as losses will be 4 or 5 times bigger than now...